CA #1 Review

The volume of water and an egg in a graduated beaker is 200 mL. After the egg is removed, the volume of the water is found to be 125 mL. What is the volume of the egg in cm³?

• 75 mL

• 25 cm³

• 75 cm³

• 150 cm³

Which of the following statements are true about mass? Select TWO correct answers.

• Mass is a physical property of matter.

• Mass is measured in degrees Celsius.

• Mass is the amount of matter in an object.

• Mass is attracted to a magnet.

• Mass is less if the object is small.

What BEST describes the changes shown in the diagram?

• change in chemical properties

• change in physical properties

• the reduction of heat

• the reduction of matter

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Look at the picture below. The picture shows a plug. It is covered in plastic and has two metal prongs sticking out the front. Which statements BEST explain why it is constructed in this way? Select TWO correct answers.

• The plastic is a conductor of electricity.

• The plastic is an insulator of electricity.

• The metal prongs are an insulator of electricity.

• The metal prongs are a conductor of electricity.

• The metal and plastic in the system do not work.

Tags

NGSS.MS-ETS1-1

NGSS.MS-PS2-3

This question has two parts. First, answer Part A. Then answer Part B. Mrs. Zelnik heated a beaker on a hot plate during a demonstration in her science class. She used protective gloves to grab the beaker filled with boiling water. Part A Why does Mrs. Zelnik need to use protective gloves to grab the beaker?

• The beaker creates thermal energy.

• The beaker insulates thermal energy.

• The beaker conducts thermal energy.

• The beaker stops thermal energy.

This question has two parts. First, answer Part A. Then answer Part B. Mrs. Zelnik heated a beaker on a hot plate during a demonstration in her science class. She used protective gloves to grab the beaker filled with boiling water. Which statement supports the answer to Part A?

• The protective gloves make the beaker feel colder.

• The protective gloves insulate heat to protect her hands.

• The protective gloves conduct heat to protect her hands.

• The protective gloves do not have any effect on her hands.

Tags

NGSS.MS-PS3-3

Which container, if any, represents a solid state of matter?

• Container 1

• Container 2

• Container 3

Lindsay gathers some items from her house. See the following list of collected objects. - Scissors - Cotton ball - Clip - Pencil - Cork - Pink eraser In what ways could she classify her objects into two different groups? Select TWO correct answers.

• States of matter

• It sinks or floats

• Magnetic or non-magnetic

• Soluble in water

• Mass

Students were asked to calculate the density of a cube. Which measurements do the students need to collect in order to calculate the density of the cube? Select TWO correct answers.

• distance

• mass

• volume

• time

• force

A small balloon is floating in a tank of water. When someone tries to push the balloon underwater, it rises back to the top. Why?

• Oxygen in the balloon pushes the balloon into the water.

• The water is more dense than the air in the balloon and pushes it above the water.

• The air in the balloon is more dense than the water.

• Condensation makes the balloon float.

Tags

NGSS.MS-PS2-2