Unit 2: Properties of Materials (Chapter 3 Test)

When Engineers design something, they usually have multiple design goals.

• True

• False

How can you find the best solution to meet your design goal?

• only choose your favorite solution

• test and compare the solutions

• randomly pick out of a hat

Choose two good properties of hair gel:

• looks shiny  

• stinks

• makes hair fall out

• makes spikes

Jess is reading to gather more information about a new hair gel. Which step of the design cycle is Jess using?

• evaluate

• investigate

• create

Jess is happy with her new hair gel. How can she communicate or share her findings?

• share it on Tik-Tok

• discuss it with other people

• read about it in a book

After all the excitement of her new hair gel, Jess accidentally placed it in the freezer. What happened to the hair gel?

• it turned solid

• it melted

• it became a liquid

A ________ is something you can see, smell, hear, feel, or taste about an ingredient.  

• solid

• goal

• property

If we're using glue for construction projects, what is another property the glue should have?

• It should be weak.

• It should be strong.

• It should be brown.

Depending on the ingredients, some mixtures have different _______________.

• designs

• observations

• properties

What are two ways you can change the properties of a substance?

• tasting

• mixing

• heating

• observing