Understanding Changes in Matter

Understanding Changes in Matter

7th Grade

10 Qs

quiz-placeholder

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Understanding Changes in Matter

Understanding Changes in Matter

Assessment

Quiz

Science

7th Grade

Hard

TEKS
SCI.7.6E, SCI.7.6C, SCI.7.6D

Standards-aligned

Used 1+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A student observes a piece of metal rusting over time. Which of the following best describes this process?

Physical change

Chemical change

Both physical and chemical change

Neither physical nor chemical change

Tags

TEKS.SCI.7.6C

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following scenarios best illustrates a physical change?

Burning a piece of paper

Dissolving sugar in water

Baking a cake

Rusting of iron

Tags

TEKS.SCI.7.6C

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A solution is made by dissolving 10 grams of salt in 100 mL of water. If the solution is diluted by adding 100 mL of water, what is the new concentration of the solution?

5 grams per 100 mL

10 grams per 200 mL

10 grams per 100 mL

20 grams per 200 mL

Tags

TEKS.SCI.7.6D

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If you have a solution with a high concentration of solute, which of the following actions will decrease the concentration?

Adding more solute

Adding more solvent

Heating the solution

Stirring the solution

Tags

TEKS.SCI.7.6D

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A student is investigating how temperature affects the rate of dissolution of sugar in water. Which of the following is a reasonable hypothesis for this investigation?

Increasing the temperature will decrease the rate of dissolution.

Increasing the temperature will increase the rate of dissolution.

Temperature has no effect on the rate of dissolution.

The rate of dissolution is highest at room temperature.

Tags

TEKS.SCI.7.6E

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following methods would most effectively increase the rate at which a solid solute dissolves in a liquid solvent?

Decreasing the surface area of the solute

Decreasing the temperature of the solvent

Stirring the solution

Allowing the solution to sit undisturbed

Tags

TEKS.SCI.7.6E

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A student is tasked with distinguishing between a physical and a chemical change. Which of the following observations would indicate a chemical change?

A change in shape

A change in color

A change in state

A change in size

Tags

TEKS.SCI.7.6C

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