The solar system online exercise for Grade 1 - Free Printable

Let’s go step by step to solve each question on this worksheet.

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Q.1: Label the planets in order from the Sun

We are given a diagram of the solar system with the Sun on the left and planets orbiting around it. We need to label them using the word box:

Word box:
Jupiter, Neptune, Venus, Saturn, Mercury, Earth, Uranus, Mars

Remember the order of planets from the Sun:

1. Mercury – closest to the Sun, small, grayish
2. Venus – second planet, often bright, yellowish-white
3. Earth – third, blue and green (we can see oceans and continents)
4. Mars – fourth, reddish
5. Jupiter – fifth, largest, striped orange and white
6. Saturn – sixth, has big rings
7. Uranus – seventh, light blue, tilted axis (but in diagrams usually shown as blue with faint rings)
8. Neptune – eighth, deep blue

Now match to the diagram:

- Closest to Sun → small gray planet → Mercury
- Next → reddish → Mars? Wait — let’s look again.

Actually, looking at the diagram carefully:

From Sun outward:

1. Small gray planet near Sun → Mercury
2. Then a yellowish planet → Venus
3. Then blue-green planet → Earth
4. Then reddish planet → Mars
5. Then huge striped planet → Jupiter
6. Then ringed yellowish planet → Saturn
7. Then light blue planet with rings → Uranus
8. Then dark blue planet → Neptune

Wait — in the diagram, after Earth (blue-green), there’s a reddish one → that’s Mars.

Then comes the big striped one → Jupiter.

Then the ringed yellow one → Saturn.

Then two blue ones: one lighter (Uranus) and one darker (Neptune).

But in the diagram, the positions are:

Left side (inner planets):

- Closest to Sun: small gray → Mercury
- Next: yellowish → Venus
- Next: blue-green → Earth
- Next: reddish → Mars

Right side (outer planets):

- Big striped → Jupiter
- Ringed yellow → Saturn
- Light blue with rings → Uranus
- Dark blue → Neptune

So labeling from left to right as they appear in the diagram (starting from Sun):

Bottom row (left to right):

- First blank (next to small gray planet) → Mercury
- Second blank (next to yellowish planet) → Venus
- Third blank (next to blue-green planet) → Earth
- Fourth blank (next to reddish planet) → Mars

Top row (left to right):

- Fifth blank (next to big striped planet) → Jupiter
- Sixth blank (next to ringed yellow planet) → Saturn
- Seventh blank (next to light blue planet) → Uranus
- Eighth blank (next to dark blue planet) → Neptune

Wait — actually, looking at the image layout:

The diagram shows:

Sun on bottom left.

Planets arranged along curved orbits.

From innermost to outermost:

1. Mercury (small, gray, close to Sun)
2. Venus (yellowish, next)
3. Earth (blue-green, with moon maybe? but not labeled)
4. Mars (reddish)
5. Jupiter (big, striped)
6. Saturn (ringed, yellow)
7. Uranus (light blue, with rings)
8. Neptune (dark blue)

In the diagram, the blanks are placed under or beside each planet.

So we assign:

- Blank under small gray planet → Mercury
- Blank under yellowish planet → Venus
- Blank under blue-green planet → Earth
- Blank under reddish planet → Mars
- Blank under big striped planet → Jupiter
- Blank under ringed yellow planet → Saturn
- Blank under light blue planet → Uranus
- Blank under dark blue planet → Neptune

✔ So Q.1 answers in order from Sun outward:

1. Mercury
2. Venus
3. Earth
4. Mars
5. Jupiter
6. Saturn
7. Uranus
8. Neptune

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Q.2: Which is the largest planet?

Options:
a) Saturn
b) Jupiter
c) Uranus
d) Neptune

We know from science: Jupiter is the largest planet in our solar system.

It’s so big that all other planets could fit inside it!

✔ Correct answer: b) Jupiter

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Q.3: Which statement is false?

Options:

a) The Sun is a medium-sized star. → TRUE. Compared to other stars, Sun is medium (not biggest, not smallest).

b) The Sun is the star at the center of our solar system. → TRUE. All planets orbit the Sun.

c) The Sun is closer to the Earth than the Moon is. → FALSE! The Moon is only about 384,000 km away. The Sun is about 150 million km away. So Moon is MUCH closer.

d) The asteroid belt is found between the orbits of Mars and Jupiter. → TRUE. That’s correct.

So the FALSE statement is c).

✔ Correct answer: c)

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Final Answer:
Q.1: From Sun outward: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Q.2: b) Jupiter
Q.3: c) The Sun is closer to the Earth than the Moon is.