A water molecule is made up of one oxygen atom and two hydrogen atoms. Why is water considered a pure substance?

Each water molecule is identical.

Water can be broken down by physical means.

Water can be combined with other substances by physical means.

Water molecules are made up of different types of atoms.

A beaker containing a certain substance has heat applied to it. The particles that make up the substance begin to move farther apart from each other. What change of state could be occurring to the substance in the beaker?

The substance is changing from a liquid to a gas.

The substance is changing from a gas to a liquid.

The substance is changing from a gas to a solid.

The substance is changing from a liquid to a solid.

The law of conservation of mass states that mass cannot be created or destroyed. To what type of change does this law apply?

both physical and chemical changes

only mass that is not undergoing change

A beaker containing ice and water is placed on a warm hotplate. Will the ice in the beaker undergo a physical or chemical change?

a physical change because it will change state

a chemical change because it will change state

a physical change because it will form a new substance

a chemical change because it will form a new substance

Which of the following is NOT a physical change?

Snapping a glow stick and the color changes

Is stretching a rubber band a physical or chemical change?

physical change because the molecules are just rearranged

chemical change because new molecules are formed

Which of the following statements is FALSE with regard to the density column?

Lamp oil has a density greater than 1 g/mL

The density of water is equal to 1g/mL

Karo syrup has a density greater than 1 g/mL

Vegetable oil has a density less than 1 g/mL

Which of the following is TRUE regarding the particle nature of a solid? Particles in a solid -

are very close together with low kinetic energy.

are relatively far apart, so it is highly compressible.

are in continual motion and can slide past each other.

are very far apart, so it can easily change its shape.

Where is the element's atomic NUMBER located?

the number of protons + the number of neutrons

Where is the element's atomic MASS located?

the top number + the bottom number

the number of protons + the number of neutrons

Monica made a snack for her friends by putting pretzels, peanuts, and raisins together in a bowl. Which statement describes Monica’s snack?

It is a mixture because each ingredient kept its original properties.

It is a new element because a chemical change took place.

It is a solution because the ingredients cannot be separated.

It is a new compound because a physical change took place.

Ling is learning about chemical reactions in science class. She measured out 45 grams of vinegar and 10 grams of baking soda. When she mixes them together, a bubbling reaction occurs. After the reaction has stopped, she weighs the mixture and finds that it weighs 54 grams. Which of the following best explains why the mixture now weighs less than the original ingredients?

The chemical reaction created a gas that left the mixture.

Some of the vinegar evaporated during the experiment.

The new solution is less dense than vinegar or baking soda.

The baking soda is floating on top of the vinegar.

Unit 1 - Matter Review

Quiz

•

Science

•

6th - 8th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-PS1-1, MS-PS1-4, MS-PS1-2

+6

Standards-aligned

Used 18+ times

FREE Resource

51 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Matter is anything that has mass and takes up space.

True

False

2.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

An element is a substance that is made up of one type of atom.

True

False

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Evaporation is the change of state from a gas to a liquid.

True

False

A solid has a definite volume and shape.

True

False

A physical property can be measured without changing the identity of the substance.

True

False

6.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

One chemical property that can be measured in a substance is its reactivity with water. What is another chemical property?

density

flammability

malleability

solubility

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Matter is made up of particles. Which of the following statements is true about these particles.

The particles that make up solids do not move.

The particles that make up liquids do not move.

The particles that make up all matter are constantly in motion.

Only the particles that make up gases are constantly in motion.

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