Signs of Chemical Change

When bananas ripen a chemical change is taking place. Which sign do you see?

• change of color

• odor

Tags

NGSS.MS-PS1-2

Which sign of a chemical change do you see in fireworks exploding?

• precipitate forms

• rust forms

• release of heat

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Identify the sign that a chemical change is happening in a glass of water with an antacid.

• rust

• bubbles

• odor

Tags

NGSS.MS-PS1-2

Freshly baked cookies is an example of a chemical change. Which sign of a chemical reaction do you experience?

• precipitate forms

• change of color

• release of light

• odor

Tags

NGSS.MS-PS1-2

What are four signs of a chemical change?

b

c

d

e

Color Change

Increase in job worker.

Bubbles Form

Temperature Change

Solid's pertacipate form

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

What is a sign that a chemical change has occurred when silver tarnishes?

• The silver becomes shinier.

• The silver changes colour and forms a new substance on its surface.

• The silver becomes softer.

• The silver becomes heavier.

Tags

ONTARIO.SCIENCE.5.C2.5

When vinegar is mixed with baking soda, bubbles form. What does this indicate?

• A physical change is occurring.

• A chemical change is occurring.

• The substances are cooling down.

• The substances are freezing.

Tags

ONTARIO.SCIENCE.5.C2.5

What are four signs of a chemical change?

b

c

d

e

Bubbles Form

Color Change

Increase in job worker.

Solid's pertacipate form

Temperature Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

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

• Chopping vegetables

• Boiling water

• Baking a cake

• Freezing juice

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Match the following images with what signs of a chemical change are presented.

• Precipitate

• 
• Light Production

• 
• Color Change

• 
• Gas Production

• 
• Temperature Change

• 

Tags

NGSS.MS-PS1-2