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Matter and Particles Practice Tests

These Grade 7 Science practice tests build understanding of matter, atoms, elements, compounds, mixtures, particle motion, states of matter, density, and scientific measurement.

Skills covered

  • Explaining matter using atoms, molecules, particle motion, and particle arrangement
  • Distinguishing elements, compounds, homogeneous mixtures, and heterogeneous mixtures
  • Describing solids, liquids, gases, changes of state, pressure, and temperature
  • Using mass, volume, density, units, and measurement evidence
  • Applying particle models to real laboratory and everyday situations

How to use these practice tests

For each question, identify the type of matter or change first. Then use the arrangement, motion, identity, and measurement of particles to select the best-supported answer.

For more Grade 7 Science practice, return to the Grade 7 Science category.

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1. Test

Grade 7 Matter and Particles Practice Tests

Practice Grade 7 Science matter and particles questions about atoms, elements, compounds, mixtures, states, density, and particle models.

Choose the best answer for each question. Review the explanation after submitting your answers.

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

What is matter?

Please select an answer first.

Correct answer: A

The correct answer is Anything that has mass and takes up space.

  1. Identify the particle idea: Determine whether the question concerns atoms, elements, compounds, mixtures, states, motion, or measurement.
  2. Use the particle model: Matter has mass and occupies space; solids, liquids, gases, and many plasmas are forms of matter.
  3. Check the evidence: Connect the visible property or measurement to the arrangement, motion, or identity of the particles.

Matter has mass and occupies space; solids, liquids, gases, and many plasmas are forms of matter.

2. QuestionMultiple choice

What is an atom?

Please select an answer first.

Correct answer: B

The correct answer is The smallest unit of an element that keeps the element's identity.

  1. Identify the particle idea: Determine whether the question concerns atoms, elements, compounds, mixtures, states, motion, or measurement.
  2. Use the particle model: Atoms are basic units of elements and contain subatomic particles such as protons, neutrons, and electrons.
  3. Check the evidence: Connect the visible property or measurement to the arrangement, motion, or identity of the particles.

Atoms are basic units of elements and contain subatomic particles such as protons, neutrons, and electrons.

3. QuestionMultiple choice

What is an element?

Please select an answer first.

Correct answer: C

The correct answer is A pure substance made of one type of atom.

  1. Identify the particle idea: Determine whether the question concerns atoms, elements, compounds, mixtures, states, motion, or measurement.
  2. Use the particle model: Every atom in an element has the same number of protons, which identifies that element.
  3. Check the evidence: Connect the visible property or measurement to the arrangement, motion, or identity of the particles.

Every atom in an element has the same number of protons, which identifies that element.

4. QuestionMultiple choice

Which particle has a negative electric charge?

Please select an answer first.

Correct answer: D

The correct answer is An electron.

  1. Identify the particle idea: Determine whether the question concerns atoms, elements, compounds, mixtures, states, motion, or measurement.
  2. Use the particle model: Electrons have negative charge and occupy regions around the nucleus.
  3. Check the evidence: Connect the visible property or measurement to the arrangement, motion, or identity of the particles.

Electrons have negative charge and occupy regions around the nucleus.

5. QuestionMultiple choice

Which particle has a positive electric charge?

Please select an answer first.

Correct answer: A

The correct answer is A proton.

  1. Identify the particle idea: Determine whether the question concerns atoms, elements, compounds, mixtures, states, motion, or measurement.
  2. Use the particle model: Protons are positively charged subatomic particles found in an atom's nucleus.
  3. Check the evidence: Connect the visible property or measurement to the arrangement, motion, or identity of the particles.

Protons are positively charged subatomic particles found in an atom's nucleus.

6. QuestionMultiple choice

Which particle has no electric charge?

Please select an answer first.

Correct answer: B

The correct answer is A neutron.

  1. Identify the particle idea: Determine whether the question concerns atoms, elements, compounds, mixtures, states, motion, or measurement.
  2. Use the particle model: Neutrons are neutral particles located in the nucleus.
  3. Check the evidence: Connect the visible property or measurement to the arrangement, motion, or identity of the particles.

Neutrons are neutral particles located in the nucleus.

7. QuestionMultiple choice

Where are protons and neutrons found?

Please select an answer first.

Correct answer: C

The correct answer is In the nucleus of an atom.

  1. Identify the particle idea: Determine whether the question concerns atoms, elements, compounds, mixtures, states, motion, or measurement.
  2. Use the particle model: The nucleus contains protons and neutrons, while electrons occupy the surrounding electron cloud.
  3. Check the evidence: Connect the visible property or measurement to the arrangement, motion, or identity of the particles.

The nucleus contains protons and neutrons, while electrons occupy the surrounding electron cloud.

8. QuestionMultiple choice

What determines which element an atom is?

Please select an answer first.

Correct answer: D

The correct answer is The number of protons in its nucleus.

  1. Identify the particle idea: Determine whether the question concerns atoms, elements, compounds, mixtures, states, motion, or measurement.
  2. Use the particle model: The atomic number, or number of protons, identifies the element.
  3. Check the evidence: Connect the visible property or measurement to the arrangement, motion, or identity of the particles.

The atomic number, or number of protons, identifies the element.

9. QuestionMultiple choice

What is a molecule?

Please select an answer first.

Correct answer: A

The correct answer is Two or more atoms joined together by chemical bonds.

  1. Identify the particle idea: Determine whether the question concerns atoms, elements, compounds, mixtures, states, motion, or measurement.
  2. Use the particle model: A molecule consists of bonded atoms and can be made of the same element or different elements.
  3. Check the evidence: Connect the visible property or measurement to the arrangement, motion, or identity of the particles.

A molecule consists of bonded atoms and can be made of the same element or different elements.

10. QuestionMultiple choice

Why do scientists use particle models for matter?

Please select an answer first.

Correct answer: B

The correct answer is The models help explain properties and changes that are difficult to see directly..

  1. Identify the particle idea: Determine whether the question concerns atoms, elements, compounds, mixtures, states, motion, or measurement.
  2. Use the particle model: Particle models connect observations such as density, pressure, and state changes to invisible particle behavior.
  3. Check the evidence: Connect the visible property or measurement to the arrangement, motion, or identity of the particles.

Particle models connect observations such as density, pressure, and state changes to invisible particle behavior.

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