What happens when chocolate is left in a hot car?

it changes from a solid to a liquid

An ice cube melts in a glass of water. Has a chemical reaction taken place? How do you know?

No, a phase change does always not indicate a chemical

Yes, a new substance was formed.

Which of the following is an example of a chemical change?

Rolling a ball of dough into a flat pizza.

Which of the following is an example of a physical change?

Rolling a ball of dough into a flat pizza.

Plants changing sunlight, water, and carbon dioxide into glucose and oxygen.

After a rainstorm, a group of students notices puddles on the sidewalk. Later that afternoon, the students observe a change in the puddles. What caused the water in the puddle to disappear?

The Sun’s heat turned the water to a gas.

The rainstorms continued all day.

The liquid water changed into ice.

Which of the following is true about the situations?

Situations 1 and 3 are physical changes because no new substances are formed.

All of the situations are examples of physical changes because they are reversible.

None of the situations are examples of physical changes because all involve a color change.

Situation 2 is a physical change because rust forming is a natural process.

Three students at Winterville Elementary were given an assignment by their science teacher to plan and carry out experiments where chemical changes would occur. Below, you can see each student’s plan and the results he or she recorded. What is true about the students’ experiments?

Student B was the only one to create an experiment with evidence of a chemical change. She created a new substance, a gas.

Student A was the only one to create an experiment where a color change occurred. This shows evidence of a chemical change.

Student A, Student B, and Student C all created experiments where chemical changes occurred. Student A observed a color change, Student B saw bubbles, and Student C was able to dissolve salt.

Student B and Student C created experiments were chemical changes occurred. Student A just dyed her water. Student B and Student C both changed their substances to prove that they had chemical changes. Student B created a gas while Student C got rid of the salt.

How does freezing water cause the weathering of rocks? The freezing water—

expands cracks and breaks rocks.

causes rocks to fall in landslides.

Physical and Chemical Change Unit Test

Authored by Courtney Clever

Science

1st - 5th Grade

NGSS covered

Used 3+ times

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33 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

This diagram shows a

solid

liquid

gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

This diagram shows a

solid

liquid

gas

Tags

NGSS.MS-PS1-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

This diagram is a

solid

liquid

gas

Tags

NGSS.5-PS1-1

NGSS.5-PS1-3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

has definite volume but takes the shape of its container

solid

liquid

gas

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When particles are _________________ they move faster and have more energy.

jiggled

shaken

heated

gassed up

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Slowest moving particles?

Solid

Liquid

Gas

Tags

NGSS.4-PS3-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is a mixture?

pennies

2 or more different things combined

different size rocks

marbles

Tags

NGSS.5-PS1-4

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Physical and Chemical Change Unit Test

This diagram shows a

This diagram shows a

This diagram is a

has definite volume but takes the shape of its container

When particles are _________________ they move faster and have more energy.

Slowest moving particles?

What is a mixture?

What are the three states of matter?

When paper is folded to make an origami bookmark, what physical property of the paper changes?

What happens when chocolate is left in a hot car?

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