Worksheet
Grade 3
3rd Grade Comparing Life Cycles
life science · TX.SCI.3.13B
$1.50
3NGSS-aligned · 3rd Grade
3rd Grade Science Worksheets & Resources
This set supports busy teachers and parents. Help your 3rd grader explore forces, life cycles, and weather patterns with ready-to-use science resources. Find worksheets, reading passages, and interactive games that build key skills like making predictions and recording observations. Print them, project them, or assign them online. Auto-grading saves you time.
Teaching to the standard?
3rd Grade Science NGSS standards
See every 3rd grade science standard and the resources aligned to each one.
Popular 3rd Grade Science resources
Teacher favorites for 3rd Grade
Worksheet
Grade 3
3rd Grade Cricket Metamorphosis
life science · TX.SCI.3.13B
$1.50
Worksheet
Grade 3
3rd Grade Beetle Metamorphosis
life science · TX.SCI.3.13B
$1.50
Worksheet
Grade 3
3rd Grade Life Cycle of a Radish
life science · TX.SCI.3.13B
$1.50
Worksheet
Grade 3
3rd Grade Life Cycle of a Lima Bean
life science · TX.SCI.3.13B
$1.50
Worksheet
Grade 3
3rd Grade What Is a Life Cycle?
life science · TX.SCI.3.13B
$1.50
Worksheet
Grade 3
3rd Grade How Texas Animals Survive
life science · TX.SCI.3.13A
$1.50
Worksheet
Grade 3
3rd Grade Bird Beaks and Feet
life science · TX.SCI.3.13A
$1.50
Worksheet
Grade 3
3rd Grade Animal Body Coverings
life science · TX.SCI.3.13A
$1.50
Worksheet
Grade 3
3rd Grade Animal Structures and Functions
life science · TX.SCI.3.13A
$1.50
Worksheet
Grade 3
3rd Grade What Do Texas Fossils Tell Us?
earth and space science · TX.SCI.3.12D
$1.50
Worksheet
Grade 3
3rd Grade Fossils: Clues to Past Life
earth and space science · TX.SCI.3.12D
$1.50
3rd Grade Science topics & skills
The full 3rd grade science scope — pick a topic or jump straight to a skill.
Life Science 3rd Grade Worksheets and Activities
9 topics · pick a topic or jump to a skill
Earth and Space Science 3rd Grade Worksheets and Activities
6 topics · pick a topic or jump to a skill
Physical Science 3rd Grade Worksheets and Activities
5 topics · pick a topic or jump to a skill
Weather and Climate 3rd Grade Worksheets and Activities
7 topics · pick a topic or jump to a skill
What do 3rd graders learn in science?
In third grade science, students build on their curiosity to explain the natural world. They investigate forces, life cycles, and weather patterns, and they use evidence to support their ideas.
- Forces and Motion. Students plan and carry out simple investigations to see how balanced and unbalanced forces affect an object's motion. They look for patterns in motion, like a pendulum's swing.
- Life Cycles. They compare life cycles of different organisms and learn that offspring inherit traits from parents. They also explore how the environment can affect some traits.
- Ecosystems. Students explain how animals form groups that help them survive and how a change in a habitat can affect the plants and animals living there.
- Weather and Climate. They record local weather and describe climates in different regions. They also brainstorm ways to reduce damage from severe weather.
- Engineering Design. Students may define a simple problem and design a solution, testing and improving their model based on results.
- Using Evidence. They make predictions, record observations, and use simple charts to look for patterns. This helps them support explanations with evidence.
How to use these 3rd grade science resources
Choose a science topic, then start with a printable worksheet or reading passage to introduce the skill. Follow up with an interactive game for guided practice or independent work. Use auto-graded questions to check understanding quickly. Teachers can project a page for whole-class discussion or assign work to small groups. Parents can print a few pages for homework or summer review. Every resource is tagged by grade and science topic, so it is easy to find the right fit.
Common questions
What science should a 3rd grader know?
In third grade, students study forces and motion, life cycles and traits, ecosystems, and weather and climate. They begin to use models, plan simple investigations, and support explanations with evidence. They also learn how engineers define problems and design solutions.
Are these 3rd grade science resources NGSS aligned?
Yes. The resources are organized around the science skills and concepts expected in third grade. Each worksheet, passage, and game is tagged by topic so you can quickly find materials that match what you are teaching.
What is the hardest science topic for third graders?
Many third graders find forces and invisible interactions tricky, especially balanced and unbalanced forces. Hands-on activities, short reading passages, and interactive games can make these ideas more concrete. Breaking the concept into small steps and using real examples helps.
Can I assign these online?
Most resources can be printed or assigned digitally. When you assign online, students complete the work on a device and it is auto-graded. You can also project pages for whole-class teaching.
Are there free 3rd grade science worksheets?
Yes. Some worksheets and activities are free to use. The full library, including all premium resources and auto-grading features, comes with a Workybooks membership.