8th Grade Chemistry And Biology! Trivia Quiz
When it comes to sciences, most students often have a hard time hitting the pass mark but with a little more practice. To assess your understanding of the material covered in 8th Grade Chemistry and Biology classes, I have prepared a quick quiz. Why don’t you give it a shot and see if you should get a tutor before your finals?
Questions and Answers
- 1.
The variable that is changed by the scientist is the independent variable and the variable that the scientist is recording data on is the dependent variable. The dependent variable is the variable that is being measured and/or observed. Additional variables know as the constant variables remain the same or constant throughout the experiment. These variables must be kept constant to insure that they do not effect the outcome of the experiment. Based on the following hypothesis: If liquid fertilzer is used then the plant will grow larger, what is the independent variable?
- A.
Type of Plant
- B.
Type of Fertilizer
- C.
Type of Planter
- D.
Amount of Plant Growth
Correct Answer
B. Type of FertilizerExplanation
In this hypothesis, the independent variable is the type of fertilizer. This is because the scientist is changing or manipulating the type of fertilizer used in the experiment. The dependent variable, on the other hand, is the amount of plant growth. This is what the scientist is measuring or observing as a result of the different types of fertilizer. The type of plant and type of planter are not mentioned in the hypothesis and therefore are not relevant to the independent variable in this case.Rate this question:
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- 2.
Which measurement does not belong?
- A.
Kilogram
- B.
Ounces
- C.
Liter
- D.
Centimeter
Correct Answer
B. OuncesExplanation
The measurement "Ounces" does not belong because it is the only measurement that is not part of the metric system. Kilogram, liter, and centimeter are all metric units of measurement commonly used in the international system of units. Ounces, on the other hand, is a unit of measurement commonly used in the imperial system, primarily in the United States.Rate this question:
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- 3.
Make the following conversion: 8 L = _______mL
- A.
8000.0
- B.
80.00
- C.
8
- D.
800
Correct Answer
A. 8000.0Explanation
To convert liters to milliliters, you need to multiply the given value by 1000. In this case, 8 liters would be equal to 8000 milliliters.Rate this question:
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- 4.
There are white trees and different kinds of green plants. What types of observations are stated?
- A.
Quantitative observations
- B.
Qualitative observations
Correct Answer
B. Qualitative observationsExplanation
The given answer is "Qualitative observations". This is because the question mentions the presence of "white trees" and "different kinds of green plants", which are descriptions based on qualities or characteristics rather than numerical measurements.Rate this question:
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- 5.
Homework may be made up for credit anytime you leave your paper in your locker, at home, in another notebook. True or False
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement is false because the question states that homework can be made up for credit anytime it is left in various places, such as the locker, at home, or in another notebook. This implies that the homework can be made up even if it is not turned in on time. However, this is not true as most teachers require homework to be turned in on time and may not accept late submissions for credit.Rate this question:
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- 6.
Classwork and projects may be turned in late for partial credit.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Classwork and projects may be turned in late for partial credit. This statement suggests that there is a possibility for students to submit their classwork and projects after the designated deadline and still receive some credit, although it may be reduced. This policy allows students who may have faced unforeseen circumstances or difficulties to still have the opportunity to submit their work and receive some recognition for their efforts.Rate this question:
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- 7.
The variable that is changed by the scientist is the independent variable and the variable that the scientist is recording data on is the dependent variable. The dependent variable is the variable that is being measured and/or observed. Additional variables know as the constant variables remain the same or constant throughout the experiment. These variables must be kept constant to insure that they do not effect the outcome of the experiment. Based on the following hypothesis: If liquid fertilzer is used then the plant will grow larger, what is the dependent variable?
- A.
Type of Plant
- B.
Type of Fertilizer
- C.
Type of Planter
- D.
Amount of Plant Growth
Correct Answer
D. Amount of Plant GrowthExplanation
The dependent variable in this hypothesis is the "Amount of Plant Growth." This is because the hypothesis states that if liquid fertilizer is used, then the plant will grow larger. Therefore, the growth of the plant is what is being measured and observed, making it the dependent variable. The other options, such as type of plant, type of fertilizer, and type of planter, are not being directly measured or observed in this hypothesis.Rate this question:
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- 8.
Using your notebook answer the following question. On what date did the class look at prokaryotes and eukaryotes. Hint: Check your TOC in your notebook.
- A.
9/3
- B.
9/23
- C.
10/3
- D.
10/23
Correct Answer
C. 10/3Explanation
The correct answer is 10/3. This date is mentioned in the hint as the day when the class looked at prokaryotes and eukaryotes.Rate this question:
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- 9.
On what page is the lab safety blueprint found in the science notebook?
- A.
1
- B.
2
- C.
3
- D.
4
Correct Answer
A. 1Explanation
The lab safety blueprint is found on page 1 of the science notebook.Rate this question:
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- 10.
On page 2 in the notebook, students completed a lab called ______?
- A.
The Banana Lab
- B.
The Penny Lab
- C.
The Procedure Lab
- D.
The Candle Lab
Correct Answer
D. The Candle LabExplanation
On page 2 of the notebook, students completed a lab called "The Candle Lab".Rate this question:
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- 11.
Which type of observation is descriptive?
- A.
Quantitative
- B.
Qualitative
Correct Answer
B. QualitativeExplanation
Qualitative observation is descriptive because it involves gathering information based on qualities, characteristics, or attributes of an object or event. It focuses on the quality, appearance, behavior, or other non-numerical aspects of what is being observed. This type of observation provides a detailed and subjective description, often using words, images, or sensory information, to convey the observed phenomena. In contrast, quantitative observation involves measuring and quantifying data using numerical values. Therefore, the correct answer is qualitative.Rate this question:
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- 12.
The formula for density is:
- A.
Density = mass divided by volume
- B.
Density = mass multiplied by volume
- C.
Density x mass x volume
Correct Answer
A. Density = mass divided by volumeExplanation
The formula for density is "mass divided by volume" because density is a measure of how much mass is packed into a given volume. By dividing the mass by the volume, we can determine how dense an object or substance is. This is because density is defined as mass per unit volume, so dividing the mass by the volume gives us the density value.Rate this question:
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- 13.
Looking at the homework on page 7 in the notebook, items with the same mass all floated?
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The given answer is false because items with the same mass do not always float. Whether an object floats or sinks depends on its density, which is determined by both its mass and volume. If the object's density is less than the density of the liquid it is placed in, it will float. However, if the object's density is greater than the density of the liquid, it will sink. Therefore, items with the same mass can have different densities and may either float or sink depending on their density and the density of the liquid.Rate this question:
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- 14.
On page 8 in notebook the answer to number 16 is ______________?
- A.
Type of Soap
- B.
Size of Bubble
- C.
Type of Instrument
- D.
Secret Ingredient
Correct Answer
B. Size of BubbleExplanation
The answer to number 16 on page 8 in the notebook is "Size of Bubble" because the question is asking for a specific characteristic or factor related to bubbles. Out of the given options, the size of the bubble is the most relevant answer as it directly corresponds to the question.Rate this question:
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- 15.
What is a variable that was kept constant during the hoop airplane experiment?
- A.
Positioning of hoops
- B.
Size of Hoops
- C.
Diameter of Hoops
- D.
Size of Straw
Correct Answer
D. Size of StrawExplanation
The experiment mentioned in the question is about a hoop airplane. The variable that was kept constant in this experiment is the size of the straw. This means that throughout the experiment, the size of the straw used to construct the hoop airplane remained the same. The other options, such as the positioning of hoops, size of hoops, and diameter of hoops, may have been manipulated or changed during the experiment, but the size of the straw was kept constant.Rate this question:
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- 16.
On page 10 in your notebook, what type of review game was played?
- A.
Millionaire
- B.
Jeopardy
- C.
Hangman
Correct Answer
B. JeopardyExplanation
The correct answer is Jeopardy.Rate this question:
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- 17.
What video was watched on 9/23?
- A.
Bill Nye Cells
- B.
Bill Nye Chemical Reactions
- C.
Bill Nye Earthquakes
Correct Answer
B. Bill Nye Chemical ReactionsExplanation
The correct answer is Bill Nye Chemical Reactions because it is the only video listed that is related to science and not specifically about cells or earthquakes.Rate this question:
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- 18.
What do organisms need to live? CHECK ALL THAT APPLY.
- A.
Food
- B.
Water
- C.
Oxygen
- D.
Get rid of waste
Correct Answer(s)
A. Food
B. Water
C. Oxygen
D. Get rid of wasteExplanation
Organisms need food to provide energy and nutrients for growth and maintenance of their bodies. Water is essential for various biological processes and helps maintain hydration. Oxygen is necessary for cellular respiration, a process that releases energy from food. Getting rid of waste is crucial to eliminate harmful substances and maintain homeostasis in the body. Therefore, all the options provided (food, water, oxygen, and getting rid of waste) are correct answers for what organisms need to live.Rate this question:
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- 19.
Using page 15 from notebook answer this question, In the 1660's what scientist discovered cells?
- A.
Pasteur
- B.
Hooke
- C.
Leewenhoek
Correct Answer
B. HookeExplanation
Hooke is the correct answer because he was the scientist who discovered cells in the 1660s.Rate this question:
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- 20.
In 1670's what scientist described microorgansims in pond water?
- A.
Pasteur
- B.
Hooke
- C.
Leewenhoek
Correct Answer
C. LeewenhoekExplanation
In the 1670s, scientist Antonie van Leeuwenhoek described microorganisms in pond water. He used a simple microscope to observe these tiny organisms, which were previously unknown to science. Leeuwenhoek's discoveries were groundbreaking and helped lay the foundation for the field of microbiology.Rate this question:
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- 21.
The sum of of all the physical and chemical processes in an organism is called _________? Check out page 15 in notebook for answer.
- A.
Homeostasis
- B.
Metabolism
- C.
Development
Correct Answer
B. MetabolismExplanation
Metabolism refers to the sum of all the physical and chemical processes in an organism. It includes processes such as digestion, respiration, and synthesis of molecules. Homeostasis, on the other hand, refers to the maintenance of a stable internal environment in an organism. Development refers to the process of growth and differentiation of cells and tissues. Therefore, the correct answer is Metabolism.Rate this question:
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- 22.
What cells were the first to evolve?
- A.
Prokaryotes
- B.
Eukaryotes
Correct Answer
A. ProkaryotesExplanation
Prokaryotes were the first cells to evolve because they are simpler in structure and lack a nucleus and other membrane-bound organelles. They are considered to be the most primitive form of life and are believed to have appeared on Earth around 3.5 billion years ago. Eukaryotes, on the other hand, evolved later and are more complex, with a nucleus and various organelles enclosed in membranes. Therefore, based on the evolutionary timeline and the characteristics of prokaryotes, they are considered to be the first cells to evolve.Rate this question:
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- 23.
All eukaryotes have a __________ that makes them different from the prokaryotes?
- A.
Ribosomes
- B.
Nucleus
- C.
Cell wall
Correct Answer
B. NucleusExplanation
The correct answer is nucleus. The presence of a nucleus is what distinguishes eukaryotes from prokaryotes. Prokaryotes, such as bacteria, do not have a nucleus, while eukaryotes, including plants, animals, and fungi, have a well-defined nucleus that contains their genetic material. The nucleus is surrounded by a nuclear membrane, which helps regulate the flow of molecules in and out of the nucleus. It plays a crucial role in various cellular processes, such as DNA replication, transcription, and gene expression.Rate this question:
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- 24.
Active transport requires _________?
- A.
Water
- B.
Osmosis
- C.
Energy
Correct Answer
C. EnergyExplanation
Active transport is a process that allows molecules or ions to move against their concentration gradient, from an area of low concentration to an area of high concentration. This movement requires energy to be expended by the cell. Therefore, the correct answer is energy.Rate this question:
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- 25.
The diffusion of water through a semipermeable or selectively permeable membrane is known as:
- A.
Diffusion
- B.
Osmosis
- C.
Both of these
Correct Answer
B. OsmosisExplanation
Osmosis is the correct answer because it specifically refers to the diffusion of water through a semipermeable or selectively permeable membrane. Diffusion, on the other hand, is a more general term that encompasses the movement of any substance from an area of higher concentration to an area of lower concentration, without specifying the involvement of a membrane. Therefore, both diffusion and osmosis are not equivalent, and osmosis is the more accurate term to describe the diffusion of water through a semipermeable membrane.Rate this question:
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- 26.
When food coloring is added to water it move from __________________?
- A.
Lower concentration to higher concentration
- B.
Higher concentration to lower concentration
Correct Answer
B. Higher concentration to lower concentrationExplanation
When food coloring is added to water, it moves from a higher concentration to a lower concentration. This is because food coloring particles are more concentrated in the area where they are initially added, and they disperse or spread out evenly throughout the water. This process is known as diffusion, where particles move from an area of higher concentration to an area of lower concentration in order to achieve equilibrium.Rate this question:
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- 27.
A potato slice placed in salt water becomes
- A.
Soft
- B.
Rigid (stiff)
Correct Answer
A. SoftExplanation
When a potato slice is placed in salt water, it becomes soft. This is because salt water has a higher concentration of solute particles compared to the potato slice. As a result, water from the potato moves out through osmosis, causing the potato to lose water and become softer in texture.Rate this question:
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- 28.
What direction does water inside a potato flow if it is placed in salt water?
- A.
Into the potato cell
- B.
Out of the potato cell
Correct Answer
B. Out of the potato cellExplanation
When a potato is placed in saltwater, the concentration of salt outside the potato is higher than the concentration inside the potato cell. This creates a hypertonic environment outside the cell. To balance the concentration, water molecules move from an area of lower solute concentration (inside the potato cell) to an area of higher solute concentration (outside the cell). As a result, water flows out of the potato cell, causing it to shrink or lose water. Therefore, the correct answer is "out of the potato cell".Rate this question:
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- 29.
Why are cells so small. Cells depend of their surface/volum ratio.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Cells are small because they rely on their surface-to-volume ratio. This means that as cells increase in size, their volume increases at a faster rate than their surface area. Since the surface area is responsible for exchanging nutrients, gases, and waste with the environment, a larger surface area allows for more efficient and effective exchange. Therefore, cells need to be small in order to maintain a high surface-to-volume ratio and ensure proper functioning.Rate this question:
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- 30.
As the size of a cell increases its surface to volume ratio decreases.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
As the size of a cell increases, its volume (the amount of space inside the cell) increases at a faster rate than its surface area (the outer area of the cell). This is because volume increases with the cube of the cell's dimensions, while surface area only increases with the square of the cell's dimensions. Therefore, as the cell gets larger, its surface to volume ratio decreases, meaning there is less surface area relative to the amount of volume inside the cell.Rate this question:
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- 31.
As the magnification increases when looking at a speciman underneath the microscope the _____ decreases?
- A.
Viewing area
- B.
Speciman
- C.
Speciman size
Correct Answer
A. Viewing areaExplanation
As the magnification increases when looking at a specimen underneath the microscope, the viewing area decreases. This is because higher magnification allows for a closer and more detailed view of the specimen, but at the same time, it limits the field of view. The higher the magnification, the smaller the area that can be seen at once, resulting in a decrease in the viewing area.Rate this question:
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- 32.
The picture below shows what types of containers?
- A.
Graduated Cylinders
- B.
Beakers
- C.
Flasks
- D.
Test tubes
Correct Answer
C. FlasksExplanation
The picture shows flasks. Flasks are commonly used in laboratories to hold and mix liquids. They have a narrow neck and a wider body, allowing for easy pouring and mixing. Flasks are often used for reactions that require heating or cooling, as they are designed to withstand temperature changes. They are also commonly used for storing and transporting liquids.Rate this question:
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- 33.
There are four puppies in the picture. This is what type of observation.
- A.
Quantitative observation
- B.
Qualitative observation
Correct Answer
A. Quantitative observationExplanation
The given correct answer is "Quantitative observation" because the observation is focused on counting the number of puppies in the picture. Quantitative observation involves collecting and analyzing data that can be measured or expressed numerically. In this case, the number of puppies is a quantitative measure.Rate this question:
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- 34.
- A.
Gram
- B.
Liter
- C.
Meter
Correct Answer
C. Meter -
- 35.
- A.
Liter
- B.
Gram
- C.
Meter
Correct Answer
A. Liter -
- 36.
- A.
Gram or kilogram
- B.
Liter
- C.
Kiloliter
Correct Answer
A. Gram or kilogram -
- 37.
- A.
Eye wash
- B.
Goggles
Correct Answer
B. Goggles -
- 38.
- A.
Beakers
- B.
Flasks
- C.
Test tubes
- D.
Graduated cyclinders
Correct Answer
D. Graduated cyclinders -
- 39.
- A.
Triple beam balance
- B.
Mass thingy
- C.
Science scale
- D.
All of the above
Correct Answer
A. Triple beam balance -
- 40.
- A.
Variables
- B.
Names
- C.
Data
Correct Answer
A. Variables -
- 41.
- A.
Procedure
- B.
List
- C.
Hypothesis
Correct Answer
A. Procedure -
- 42.
- A.
Shower
- B.
Goggles
- C.
Eye wash
- D.
Apron
Correct Answer
D. Apron -
- 43.
- A.
Exits
- B.
Goggles
- C.
None of these
Correct Answer
A. Exits -
- 44.
Based on the experiment above and this hypothesis: If dry powder fertilizer is used then the plant will grow larger, check all the variables that should remain the same or constant.
- A.
Amount of water used
- B.
Type of soil
- C.
Type of plant
- D.
Amount of light
- E.
Type of fertilizer
Correct Answer(s)
A. Amount of water used
B. Type of soil
C. Type of plant
D. Amount of lightExplanation
The variables that should remain the same or constant in the experiment are the amount of water used, the type of soil, the type of plant, and the amount of light. These variables are not related to the hypothesis that dry powder fertilizer will make the plant grow larger. Therefore, in order to accurately test the hypothesis, these variables should be kept constant so that any changes in the plant's growth can be attributed to the type of fertilizer used.Rate this question:
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- 45.
A graduated cyclinder is used to measure the volume of a substance. Remember to ONLY measure to the accuracy of the instrument. This graduated cylider measures to the nearest mL. What is/are theacceptable volumes of this liquid to the nearest mL?
- A.
30 mL & 40 mL
- B.
36 mL & 37 mL
- C.
36 mL
- D.
37 mL
Correct Answer
B. 36 mL & 37 mLExplanation
The graduated cylinder measures to the nearest mL, so the acceptable volumes would be the ones that can be accurately measured to the nearest mL. In this case, the acceptable volumes would be 36 mL and 37 mL, as they can be measured accurately using the instrument.Rate this question:
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- 46.
- A.
A
- B.
B
- C.
C
- D.
D
Correct Answer
B. B -
- 47.
- A.
A
- B.
B
- C.
C
Correct Answer
C. C -
- 48.
- A.
152.5 g
- B.
165.3 g
- C.
None of these
Correct Answer
B. 165.3 g -
- 49.
What letter represents the course adjustment?
- A.
F
- B.
G
- C.
H
- D.
I
Correct Answer
C. HExplanation
The letter "H" represents the course adjustment.Rate this question:
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- 50.
What number represents the nucleus?
- A.
1
- B.
2
- C.
3
- D.
4
Correct Answer
B. 2Explanation
The number 2 represents the nucleus. In the context of this question, the nucleus refers to the central part of an atom that contains protons and neutrons. The other options, 1, 3, and 4, do not represent the nucleus but could potentially represent other parts of an atom or unrelated concepts.Rate this question:
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