Matter

Front

Jacob put yeast into a bowl of water and added a little sugar. He put the bowl in a warm place. After a while, Jacob observed foam spilling out of the bowl. What kind of change is occurring?

Back

chemical change

Front

Mai filled two balloons with the same amounts of water, sugar, and yeast. She put one on a table in the classroom. She put the other on a sunny windowsill. Why did the balloon in the window grow larger? Options: The windowsill area is cooler, The windowsill area is warmer, The classroom table area is warmer, The classroom table area is the same temperature as the windowsill.

Back

The windowsill area is warmer.

Front

Which of the following represents a chemical change?

Back

Front

Which condition affects the rate of state change in a substance? (color, light, shape, temperature)

Back

temperature

Front

Based on evidence in the table, what happened as the number of stirs increased? Stirring Time (sec): zero stirs 2, two stirs 17, four stirs 11, six stirs 7.

Back

The speed of dissolving increased.

Front

After Felix adds salt to the boiling water, what will he have in the pot?

Back

a mixture called a solution

Front

What best describes sand, a garden salad, and lemonade?

Back

mixtures

Front

Which of these ingredients will dissolve in the water?

garlic

,

oil

,

pepper

,

salt

Back

salt

Front

The following pictures show the particles of a substance in different states. All of the pictures show the same substance. Which is most likely a solid?

Back

Front

What is a physical property of a gas?

Back

It can be compressed.