Third grade Science Practice
Third grade science explores forces and motion, inheritance, traits, ecosystems, and weather and climate.
13 skills · 322 questions · No signup required to try
Adaptive difficulty
Questions get harder as your child improves and ease back when they struggle.
Mastery tracking
See real progress across every third grade Science skill.
Motivating
Streaks, points, badges, and games keep kids coming back.
Third grade Science topics covered
Forces and interactions
- Plan and investigate to provide evidence of the effects of balanced and unbalanced forces
- Make observations to provide evidence of electric and magnetic interactions
- Ask questions about data to determine the factors affecting the strength of magnetic forces
- Define a simple design problem to solve by applying forces
Heredity and traits
- Analyze and interpret data to provide evidence that plants and animals have traits from parents
- Use evidence to support the explanation that traits can be influenced by environment
- Use information from fossils to learn about organisms that lived long ago
Ecosystems
- Construct an argument that some animals form groups that help members survive
- Represent data in tables and graphs on environments where organisms live
- Make a claim about merit of a solution to a problem caused by climate change
Weather and climate
- Represent data in tables and graphs about typical weather conditions and seasonal patterns
- Obtain and combine information about climates in different world regions
- Investigate how warming and cooling affect air and water
Frequently asked questions
Is Third grade Science practice free?+
Yes — try several questions per grade free, no signup needed. A free account unlocks unlimited adaptive practice and saved progress.
How does ZeLarn adapt to my child's level?+
After each answer, ZeLarn adjusts the difficulty — promoting to harder questions after a correct streak and easing back when your child struggles — so practice always stays at the right challenge.
Is ZeLarn a good IXL alternative for third grade Science?+
ZeLarn offers adaptive practice, mastery tracking, and gamification (streaks, badges, games) as a free, engaging alternative for third grade students.