Grades 3–5
Final Exam
Official
Science: States of Matter: Final Exam Review
Free states of matter practice for elementary physical science. Review solids, liquids, and gases plus melting, freezing, evaporation, and condensation. Comprehensive review mixing skills from the whole unit. Use this set the week before a major test.
For teachers
Pair with a hands-on lab on melting ice or evaporating water, then assign this quiz to reinforce particle model vocabulary.
Learning support
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Study guide
# Final Exam Review Guide
Comprehensive review mixing skills from the whole unit. Use this set the week before a major test.
## Unit checklist
Work through every section below, then take the final exam quiz.
# Properties of Solids, Liquids, and Gases
Solids have a definite shape and volume. Liquids have a definite volume but take the shape of their container. Gases have no definite shape or volume and spread to fill available space. All matter is made of tiny particles in motion.
# Particle Model
In solids, particles are packed closely and vibrate in place. In liquids, particles slide past each other. In gases, particles move freely and are far apart. Heating adds energy and makes particles move faster.
# Changes of State
Melting changes a solid to a liquid. Freezing changes a liquid to a solid. Evaporation changes a liquid to a gas at the surface. Boiling is rapid evaporation throughout a liquid. Condensation changes a gas to a liquid.
# Physical vs Chemical Changes
A change of state is physical because the substance is still the same material. Ice, liquid water, and water vapor are all H₂O. Physical changes can often be reversed. Chemical changes form new substances with different properties.
FAQ
- Does this include the particle model?
- Yes. Explanations reference how particles behave in each state, which supports modern elementary science standards.
- Is plasma covered?
- This pack focuses on solids, liquids, and gases most common in grades 3 through 5 curricula.