Changes in Matter

A ___________ change alters the form or appearance of matter but does not change the substance's identity.

• physical

• chemical

• substantial

• climate

Tags

NGSS.MS-PS1-4

A substance that undergoes a physical change is ________ the original substance after the change.

• different from

• the same as

• slightly larger than

• a clone of

A change in matter that produces one or more new substances is a __________ change.

• spare

• chemical

• diaper

• physical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Mrs. Herbert's science class is learning that substances can change in many ways. Sometimes a change will produce a new substance. Which of the following is an example of a change that results in a new substance?

• Egg frying in a pan

• Water freezing into ice

• Paper being shredded

• Lump of clay being broken in two

Tags

NGSS.MS-PS1-2

Dilion left his bike outside for several weeks. During this time, it rained often. How does Dilion know that a change has taken place in the bike that resulted in a new substance?

• The bike is wet

• The paint is peeling

• The water has evaporated

• The bike has reddish rust

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Bob and his friends, noticed an apple on the ground. The apple was beginning to decay. This is a chemical change. Which of these are evidence of a chemical change.

• A change in the size and shape

• A change in color and smell

• A change in texture and shape

• A change in size and hardness

Tags

NGSS.MS-PS1-2

Mrs. Ruiz asked her science class what would happen if a substance were to undergo a chemical change. The students said that a new substance would be formed. Which of the following would NOT provide evidence that supports the students’ claim?

• change in odor

• change in color

• presence of bubbles

• change in size and shape

Tags

NGSS.MS-PS1-2

Which of these is not a chemical change

• leaves decaying

• icicles melting

• wood burning

• rust on a bicycle

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Alex baked a batch of cookies. When the cookies came out of the oven, Alex noticed that color of the cookies had changed. They smelled different than the raw cookie dough. The raw cookie dough was sticky and soft and the baked cookies are dry and firm. What kind of change has taken place in the cookies?

• Chemical change- decaying
• Chemical change- cooking
• Physical change- cooking
• Physical change- breaking

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Keira is observing a piece of kiwi for 10 days. She notices the kiwi becomes soft, black and brown spots appear on its skin. The kiwi is starting to give off a strong, bad odor. Keira hypothesizes that the kiwi is changing because of the heat in the room. What is an observation AND an inference that Keira made?

• Keira notices the texture has changed. 
• Keira infers that the heat is responsible for the changes.
• Keira notices the the color has changed and infers that the heat is responsible for the changes.
• Keira does not observe any changes.