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Free Science Worksheets for Kids

38+ printable Science worksheets for Grades 1–6. Solar system, ecosystems, plants, animals and more. Fun themes, answer keys included. Instant PDF download.

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✓ Common Core aligned
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Browse by grade: Grade 1 (3)Grade 2 (3)Grade 3 (2)Grade 4 (2)Grade 5 (10)Grade 6 (18)
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About Our Science Worksheets

Our science worksheets introduce students in Grades 1-6 to the natural world through engaging, standards-aligned activities spanning life science, earth science, and physical science.

Skills covered include observation, classification, the scientific method, ecosystems, weather, matter, forces, and the human body.

Our worksheets use verified facts from trusted sources — NASA, USDA, USGS, and NOAA — to make learning accurate and engaging.

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Grade 1
3 free worksheets
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Grade 2
3 free worksheets
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Grade 3
2 free worksheets
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Grade 4
2 free worksheets
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Grade 5
10 free worksheets
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Grade 6
18 free worksheets
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Latest Science Worksheets

Browse all 38+ →
Science
Science · Grade 5

Zoe Dives Deep: Ocean Gravity Adventure

Gravity · Ocean Animals theme

✓ Answer Key Included Standard View →
Science
Science · Grade 1

Zoe Finds Spring Animal Babies

Animals And Their Babies · Spring theme

✓ Answer Key Included Beginner View →
Science
Science · Grade 6

Zoe's Robot Ecosystem Mission

Ecosystems · Robots theme

✓ Answer Key Included Standard View →
Zoe Saves the Water Cycle on Earth Day
Science · Grade 5

Zoe Saves the Water Cycle on Earth Day

Water Cycle · Earth Day theme

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Zoe's Spring Garden Plant Life Cycle Adventure
Science · Grade 2

Zoe's Spring Garden Plant Life Cycle Adventure

Plant Life Cycle · Spring Garden theme

✓ Answer Key Included Standard View →
Zoe and the Oracle's Garden of Traits
Science · Grade 6

Zoe and the Oracle's Garden of Traits

Heredity · Mythology theme

✓ Answer Key Included Standard View →
Zoe's Desert Rock Record Hunt
Science · Grade 6

Zoe's Desert Rock Record Hunt

Earth History · Desert theme

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Zoe and the Robot Force Lab
Science · Grade 6

Zoe and the Robot Force Lab

Forces · Robots theme

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Zoe Builds a Robot: Cells Inside
Science · Grade 6

Zoe Builds a Robot: Cells Inside

Cells · Robots theme

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Zoe's Summer of Secrets: Heredity Unlocked
Science · Grade 6

Zoe's Summer of Secrets: Heredity Unlocked

Heredity · Summer Vacation theme

✓ Answer Key Included Standard View →
Zoe's Spring Weather Adventure Worksheet
Science · Grade 3

Zoe's Spring Weather Adventure Worksheet

Weather And Seasons · Spring theme

✓ Answer Key Included Standard View →
Zoe Dives Deep: Secrets of Heredity
Science · Grade 6

Zoe Dives Deep: Secrets of Heredity

Heredity · Underwater Explorers theme

✓ Answer Key Included Standard View →