Eighth grade Science Practice
Eighth grade science covers motion and forces, waves, Earth's place in the universe, and ecology.
14 skills · 112 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 eighth grade Science skill.
Motivating
Streaks, points, badges, and games keep kids coming back.
Eighth grade Science topics covered
Motion and forces
- Interpret graphs of position versus time and velocity versus time for motion
- Apply Newton's laws to explain observed motion
- Design a solution that reduces or increases the effect of a force
- Investigate and explain how gravity affects the motion of objects
Waves
- Use mathematical representations to describe properties of waves
- Develop and use a model to describe how waves are reflected, absorbed, or transmitted
- Integrate qualitative scientific and technical information to support the claim that digitized signals are a more reliable way to encode and transmit information
Space systems and Earth's history
- Analyze and interpret data to determine scale properties of objects in the solar system
- Develop and use a model of the Earth-sun-moon system to describe the role of patterns and cycles
- Construct a scientific explanation based on evidence from rock strata for how the geologic time scale is used
- Analyze and interpret data on the distribution of fossils
Ecology and climate
- Analyze and interpret data about the effects of local or global climate change
- Ask questions to clarify evidence of factors causing climate change over the past century
- Construct an explanation based on evidence for how natural selection leads to adaptation of populations
Frequently asked questions
Is Eighth 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 eighth grade Science?+
ZeLarn offers adaptive practice, mastery tracking, and gamification (streaks, badges, games) as a free, engaging alternative for eighth grade students.