Solar System Worksheets

The Sun, the Earth and the planets for kindergarten to 2nd grade: watch Kit the fox find the hottest planet, read the free book, then match planet names and learn how the Sun warms the Earth, in black and white.

Kit's Science Mysteries · Free lesson

Kit’s Space Mystery: Which Planet Is the Hottest?

A 5-minute mystery video, a free book that retells it, and four worksheets: one science lesson, start to finish.

1

Watch

Kit the fox follows the clues: the Sun, a campfire, a freezing night on Mercury and the thick clouds of Venus. Download the video (for classrooms where YouTube is blocked) · More Kit mysteries on YouTube

2

Read

Kit's Space Mystery reader cover

Kit's Space Mystery retells the video in six pages to print, cut and staple. Free in two editions: one short line a page for kindergarten, fuller sentences for grades 1-2.

Kindergarten book Grades 1-2 book
3

Talk

  1. Why did everyone guess Mercury was the hottest planet?
  2. How is air like a blanket?
  3. Why is Venus hotter than Mercury?
4

Do

Sunlight warms the Earth (NGSS K-PS3-1), the Sun is a star (1-ESS1-1), and an early look at the planets (the solar system is taught in grade 5, 5-ESS1-1).

Free Solar System worksheets

Each is a PDF to print right away, in black and white. Sheets with right answers have the answer key on page 2.

Planet Names worksheet preview

Planet Names

K-2

Match five planet names to their pictures. Answer key on page 2.

Download PDF
The Sun and the Earth worksheet preview

The Sun and the Earth

K-2

The Sun, the Earth on its orbit, and the Moon, with each one named.

Download PDF
My Favorite Planet worksheet preview

My Favorite Planet

K-2

Draw your favorite planet, name it, and write one thing about it.

Download PDF
The Sun worksheet preview

The Sun

Grades 1-2

Five sentences about the Sun to finish from a word bank, then draw the Sun and the Earth. Answer key on page 2.

Download PDF
Solar System pack: the reader and worksheets
K-2 Science Pack

The Solar System pack

The whole unit in one place: all 7 Solar System worksheets in one print-ready file with every answer key, and the Kit's Space Mystery reader in both editions, kindergarten and grades 1-2 (the grades 1-2 book has fuller sentences on every page).

Only in the pack:

One-time purchase. Instant download. Secure checkout by Stripe.
Teaching more than one topic? Get all 9 K-2 science packs (Life Cycle of a Chicken, Living and Nonliving, Plant Life Cycle, Animals, Weather and Seasons, Solid, Liquid and Gas, Dinosaurs, Pumpkins and Apples, Solar System): 89 worksheets and 9 readers for $19.
Get all 9 topics for $19

More K-2 science

Life Cycle of a Chicken, Living and Nonliving, Plant Life Cycle, Animals, Weather and Seasons, Solid, Liquid and Gas, Dinosaurs, Pumpkins and Apples, and all topics on the K-2 science page.

Teaching the solar system in K-2

Start with the free Kit video lesson: Kit the fox flies toward the Sun and follows the clues to find the hottest planet. Kids guess Mercury, the closest planet, but the answer is Venus, because its thick clouds trap the heat. Then print Kit's Space Mystery, the free book that retells the video in two editions.

The worksheets keep it simple: match five planet names to their pictures, name the Sun, the Earth, its orbit and the Moon, finish five sentences about the Sun, and draw your favorite planet. The solar system is a grade 5 standard, so this is an early look; the K-2 science underneath is that sunlight warms the Earth and the Sun is a star.

More science

For older students, see the solar system diagram and teaching pack, and for the weather the Sun makes here on Earth, the weather and seasons unit.

Frequently Asked Questions

Which planet is the hottest?
Venus. Mercury is closer to the Sun, but it has almost no air, so its heat escapes at night. Venus is wrapped in thick clouds and gas that trap the heat, so it stays hotter than Mercury, day and night.
How many planets are in the solar system?
Eight: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. They all travel around the Sun, each on its own path called an orbit.
Are the solar system worksheets free?
Yes. Planet Names, The Sun and the Earth, The Sun and My Favorite Planet are free PDFs in black and white, and the Kit video, book and lesson are free too.