1.
The Earth moves around
Correct Answer
B. The sun
Explanation
The Earth moves around the sun. This is known as the Earth's orbit. The gravitational force between the sun and the Earth keeps the Earth in its orbit, causing it to revolve around the sun. This movement is not in a perfect circle, but rather in an elliptical path. This motion is responsible for the changing seasons and the length of the year on Earth.
2.
REVOLUTION means to 'go all the way around a central point or object once'
Correct Answer
A. True
Explanation
Just like the Earth goes around the sun, or the moon goes around the Earth.
3.
How long does it take for the Earth to make one REVOLUTION around the sun?
Correct Answer
A. 365.25 days
Explanation
Don't forget that although our 'year' usually contains 365 days, every four years we have to add in a leap year so that we don't get out of whack
4.
An axis is a visible or imagined line that something revolves (turns) around.
Correct Answer
A. True
Explanation
A merry-go-round often has a visible axis - the pole in the centre. The horses or animals revolve around the pole.
5.
The Earth revolves around an ________.
Correct Answer
axis
Explanation
The Earth revolves around an axis, which is an imaginary line passing through its center from the North Pole to the South Pole. This axis is tilted at an angle of approximately 23.5 degrees relative to its orbital plane around the Sun. As the Earth rotates on its axis, it causes day and night cycles, while the tilt of the axis creates the changing seasons throughout the year.
6.
In science, cycles are
Correct Answer
C. Things that happen over and over again
Explanation
Cycles in science refer to events or processes that occur repeatedly. They are not necessarily related to revolutions or experiments, but rather describe patterns or occurrences that happen over and over again.
7.
Tick all the options that involve cycles
Correct Answer(s)
A. The Seasons
B. The water cycle
C. Climate changing from interglacial to ice age over and over again
D. Day and night
Explanation
The options "the Seasons," "the water cycle," "climate changing from interglacial to ice age over and over again," and "day and night" all involve cycles. The Seasons refer to the regular pattern of changes in weather and temperature throughout the year. The water cycle is the continuous movement of water on, above, and below the Earth's surface. Climate changing from interglacial to ice age over and over again refers to the cyclical shifts in climate that have occurred throughout Earth's history. Day and night occur in a regular cycle as the Earth rotates on its axis.
8.
What causes seasons on Earth?
Correct Answer
C. The tilt of the Earth's axis
Explanation
The tilt of the Earth's axis is what causes seasons on Earth. As the Earth orbits the sun, the tilt causes different parts of the Earth to receive varying amounts of sunlight throughout the year. When one hemisphere is tilted towards the sun, it experiences summer, while the other hemisphere is tilted away and experiences winter. As the Earth continues its orbit, the tilt changes, leading to the transition of seasons. The distance between the sun and Earth, the moon and tides, and the solar flare cycle do not directly cause seasons on Earth.
9.
We get day and night because only one side of the Earth can face the __________ at a given point in time.
Correct Answer
sun
Sun
Explanation
The reason we experience day and night is because only one side of the Earth can face the sun at a given point in time. As the Earth rotates on its axis, different parts of the planet receive sunlight while others are in darkness. This rotation causes the cycle of day and night, with the side facing the sun experiencing daylight, while the opposite side experiences nighttime. The sun's position in relation to the Earth determines which areas receive sunlight and which are in shadow, resulting in the alternating periods of light and darkness that we observe.
10.
Which of the following is TRUE?
Correct Answer
B. Day and night always add up to 24 hours
Explanation
the tilt of our axis stays the same, but which hemisphere is getting the most energy from the sun changes depending on where the Earth is in its orbit around the sun.
11.
Tick all the places that are in the Northern Hemisphere
Correct Answer(s)
A. Scotland
C. China
D. Hawaii
Explanation
Scotland, China, and Hawaii are all located in the Northern Hemisphere. The Northern Hemisphere is the half of the Earth that lies north of the equator. Scotland is part of the United Kingdom and is located in the northern part of the British Isles. China is a vast country located in East Asia, and its northernmost regions are in the Northern Hemisphere. Hawaii, although it is an archipelago in the Pacific Ocean, is also considered part of the Northern Hemisphere as it lies north of the equator.
12.
The length of the day and night are NEVER exactly the same
Correct Answer
B. False
Explanation
this happens twice a year, in Spring and Autumn. In the middle of Winter, we get the shortest day of the year, and in the middle of Summer we get the longest day of the year.