I will solve this worksheet step by step, explaining the science behind each answer.
Step 1: Solve Question 1 - Complete with the correct words
This question shows the Sun and Earth, illustrating how the Earth's rotation on its axis causes day and night. I need to label the diagram correctly using the words: DAY, NIGHT, AXIS, SUN.
- The large yellow star is clearly the
SUN.
- The line going through the center of the Earth represents its rotational
AXIS.
- The side of the Earth facing the Sun experiences
DAY.
- The side of the Earth away from the Sun experiences
NIGHT.
Therefore, the labels should be placed as follows:
- The box next to the Sun:
SUN
- The vertical line through Earth:
AXIS
- The box pointing to the sunlit side of Earth:
DAY
- The box pointing to the dark side of Earth:
NIGHT
Step 2: Solve Question 2 - Write the seasons in the correct place
This question shows the Earth orbiting the Sun at four different positions. I need to label these positions with the correct season: Spring, Summer, Autumn, Winter.
The key concept here is that seasons are caused by the tilt of the Earth's axis (about 23.5 degrees) as it orbits the Sun. This tilt means that during part of the year, one hemisphere is tilted towards the Sun (experiencing summer), while the other is tilted away (experiencing winter). When neither hemisphere is tilted towards or away from the Sun, we have spring and autumn.
Looking at the diagram:
- The position where the Northern Hemisphere is tilted *towards* the Sun is
Summer for the Northern Hemisphere.
- The position where the Northern Hemisphere is tilted *away* from the Sun is
Winter for the Northern Hemisphere.
- The position where the Earth is moving from winter to summer (Northern Hemisphere tilting towards the Sun) is
Spring.
- The position where the Earth is moving from summer to winter (Northern Hemisphere tilting away from the Sun) is
Autumn.
Assuming the diagram follows the standard convention (counterclockwise orbit, with the top of the image representing the Northern Hemisphere):
- Top position:
Spring
- Right position:
Summer
- Bottom position:
Autumn
- Left position:
Winter
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Final Answer
Question 1:
- Label next to the Sun:
SUN
- Label for the line through Earth:
AXIS
- Label for the sunlit side of Earth:
DAY
- Label for the dark side of Earth:
NIGHT
Question 2:
- Top box:
Spring
- Right box:
Summer
- Bottom box:
Autumn
- Left box:
Winter
Parent Tip: Review the logic above to help your child master the concept of solar system worksheet for 2nd grade.
