NumicornNumicornLearn, solve, progress

Grade 5 Science · Conservation of Matter

Grade 5 Conservation of Matter Practice Test

Build Grade 5 Science skills with five 10-question practice tests on closed systems, mass, physical and chemical changes, particle models, and scientific evidence.

Conservation of Matter Practice Tests

These Grade 5 Science practice tests help students track matter during physical changes, chemical reactions, and mixtures. Students use closed systems, mass measurements, particle models, and observations to explain why matter is rearranged rather than created or destroyed.

Skills covered

  • Explaining conservation of matter in closed systems
  • Comparing mass before and after physical changes
  • Tracking gases during evaporation and chemical reactions
  • Distinguishing rearrangement from creation or destruction
  • Using particle models to represent changes
  • Planning fair measurements and repeated trials
  • Connecting observations and data to scientific conclusions

How to use these practice tests

First identify the system boundary and decide whether matter can enter or leave. Then track solids, liquids, and gases, compare measurements, and use observations to explain what happened during the change.

For more Grade 5 Science practice, return to the Grade 5 Science category.

Select a test

5 Tests
1. Test2. Test3. Test4. Test5. Test

5. Test

Grade 5 Conservation of Matter Practice Tests

A 10-question Grade 5 Science practice test on conservation of matter, closed systems, mass, physical and chemical changes, particles, and scientific evidence.

Track the matter in each system, decide whether the system is closed, and use measurements or observations to select the best explanation.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

Which example shows matter being rearranged without a chemical reaction?

Please select an answer first.

Correct answer: A

The correct answer is Water freezes into ice and later melts back into liquid water..

  1. Identify the system: Decide whether the matter is in a closed system and what change or reaction occurred.
  2. Track the matter: Freezing and melting change the state of water without forming a new substance.
  3. Choose the evidence-based answer: The correct choice is Water freezes into ice and later melts back into liquid water..

Freezing and melting change the state of water without forming a new substance.

2. QuestionMultiple choice

Which example best shows that a gas can be matter?

Please select an answer first.

Correct answer: B

The correct answer is A balloon expands when air is added because the air takes up space and has mass..

  1. Identify the system: Decide whether the matter is in a closed system and what change or reaction occurred.
  2. Track the matter: Air is a gas that occupies space and contributes mass to the balloon.
  3. Choose the evidence-based answer: The correct choice is A balloon expands when air is added because the air takes up space and has mass..

Air is a gas that occupies space and contributes mass to the balloon.

3. QuestionMultiple choice

Why should a student include the container when weighing a sealed reaction?

Please select an answer first.

Correct answer: C

The correct answer is The container and everything inside are part of the system being compared..

  1. Identify the system: Decide whether the matter is in a closed system and what change or reaction occurred.
  2. Track the matter: Including the same sealed container before and after accounts for the full system.
  3. Choose the evidence-based answer: The correct choice is The container and everything inside are part of the system being compared..

Including the same sealed container before and after accounts for the full system.

4. QuestionMultiple choice

Which diagram would best model conservation during a reaction?

Please select an answer first.

Correct answer: D

The correct answer is The same total number of particle symbols appears before and after, but the symbols are connected differently..

  1. Identify the system: Decide whether the matter is in a closed system and what change or reaction occurred.
  2. Track the matter: The particle count remains while the arrangements change into products.
  3. Choose the evidence-based answer: The correct choice is The same total number of particle symbols appears before and after, but the symbols are connected differently..

The particle count remains while the arrangements change into products.

5. QuestionMultiple choice

Which statement about burning is most accurate?

Please select an answer first.

Correct answer: A

The correct answer is Burning changes fuel and oxygen into new substances, including gases and often solid ash..

  1. Identify the system: Decide whether the matter is in a closed system and what change or reaction occurred.
  2. Track the matter: Combustion is a chemical reaction that rearranges fuel and oxygen into products.
  3. Choose the evidence-based answer: The correct choice is Burning changes fuel and oxygen into new substances, including gases and often solid ash..

Combustion is a chemical reaction that rearranges fuel and oxygen into products.

6. QuestionMultiple choice

A sealed bag contains vinegar and baking soda in separate cups. When mixed, the bag expands. What is the best conclusion?

Please select an answer first.

Correct answer: B

The correct answer is The reaction produced gas, and the gas remained inside the sealed bag..

  1. Identify the system: Decide whether the matter is in a closed system and what change or reaction occurred.
  2. Track the matter: The expansion is evidence of gas production, and the sealed bag keeps that product inside.
  3. Choose the evidence-based answer: The correct choice is The reaction produced gas, and the gas remained inside the sealed bag..

The expansion is evidence of gas production, and the sealed bag keeps that product inside.

7. QuestionMultiple choice

Which result would make a student question the setup of a conservation test?

Please select an answer first.

Correct answer: C

The correct answer is The container was open during a reaction that produced gas, so the final mass was much lower..

  1. Identify the system: Decide whether the matter is in a closed system and what change or reaction occurred.
  2. Track the matter: An open system can lose gas, so the result may not test total matter in the full system.
  3. Choose the evidence-based answer: The correct choice is The container was open during a reaction that produced gas, so the final mass was much lower..

An open system can lose gas, so the result may not test total matter in the full system.

8. QuestionMultiple choice

Which sentence is the best scientific explanation for a solution becoming clear?

Please select an answer first.

Correct answer: D

The correct answer is The solute particles spread throughout the solvent and are too small to see separately..

  1. Identify the system: Decide whether the matter is in a closed system and what change or reaction occurred.
  2. Track the matter: Invisible dissolved particles remain matter even when they are evenly distributed.
  3. Choose the evidence-based answer: The correct choice is The solute particles spread throughout the solvent and are too small to see separately..

Invisible dissolved particles remain matter even when they are evenly distributed.

9. QuestionMultiple choice

Which statement should be included in a lab conclusion?

Please select an answer first.

Correct answer: A

The correct answer is The evidence and measurements show whether the results support the conservation claim..

  1. Identify the system: Decide whether the matter is in a closed system and what change or reaction occurred.
  2. Track the matter: A scientific conclusion connects the claim to the evidence and measurements.
  3. Choose the evidence-based answer: The correct choice is The evidence and measurements show whether the results support the conservation claim..

A scientific conclusion connects the claim to the evidence and measurements.

10. QuestionMultiple choice

Which idea summarizes conservation of matter?

Please select an answer first.

Correct answer: B

The correct answer is Matter can change location, state, or arrangement, but the total amount remains in the system when it is closed..

  1. Identify the system: Decide whether the matter is in a closed system and what change or reaction occurred.
  2. Track the matter: This statement describes how matter changes while remaining conserved in a closed system.
  3. Choose the evidence-based answer: The correct choice is Matter can change location, state, or arrangement, but the total amount remains in the system when it is closed..

This statement describes how matter changes while remaining conserved in a closed system.

Previous testNext test

Frequently asked questions about Grade 5 Conservation of Matter

What does conservation of matter mean?

Matter is not created or destroyed during a change; it can be rearranged or change form, especially when all matter is included in a closed system.

Why are closed systems useful in experiments?

A closed system keeps matter from entering or leaving, so scientists can compare the total mass before and after a change.

How many questions are on this page?

The page includes five mini tests with 10 questions each, for 50 Grade 5 Conservation of Matter questions in total.