4th Grade Earth and Physical Science Review

Sometimes a change will produce a new substance. This is called a chemical change. Which of the following is an example of a chemical change?

• egg frying in a pan

• paper being shredded

• water freezing into ice

• lump of clay broken into two pieces

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

On a camping trip, a family roasts marshmallows. They use a metal rod to hold the marshmallow over the fire. What happens to the metal rod after the marshmallow has roasted over the fire for a few minutes.

• The metal rod does not get hot.

• The entire metal rod becomes hot at the same time.

• The metal rod becomes hot first at the part in the fire, and then at the top of the handle.

• The metal rod becomes hot only at part in the fire.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

John is making Chili and it is very hot. What type of spoon is John most likely using to keep from burning his hand when he touches the spoon that he puts in the chili pot?

• Steel

• Wood

• Copper

• Aluminum

Tags

NGSS.MS-PS3-3

Tom has an iron nail. Which of these changes to the nail results in a new material with different characteristics? (A Chemical change)

• He bends the iron nail with some pliers.

• He surrounds the iron nail with a copper wire.

• He leaves the iron nail outside in the rain and it rusts.

• He hammers the iron nail into a wall so that he can hang a picture.

Tags

NGSS.MS-PS1-2

Sam left the refrigerator door open. His mom told him to close it because the food inside would get too warm. Which statement best explains why the food inside the refrigerator gets warm if the door is left open too long?

• The refrigerator does not work if the door is open.

• The light inside the refrigerator comes on and warms the food

• Heat energy transfers from the warm room to the cool refrigerator.

• Cool air in the refrigerator moves out of the door and into the room.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Richie is learning to play the guitar. When he plays the strings, the guitar makes a sound. Which of the following best explains why the guitar strings make a sound when Richie plays the guitar?

• They cause the air to vibrate.

• They cause the air to heat up.

• They cause an electric charge.

• They cause energy to be absorbed.

What two measurements below are needed to determine the speed of an object?

• distance traveled, and time traveled

• time traveled, and mass of the object

• height of the object, and distance traveled

• height of the moving object, and mass of the object

Tim is working on a homework assignment. He is making a list of sports activities that demonstrate a change caused by applying energy. He writes his list in the notebook shown below.

-hitting a ball with a tennis racquet

-rolling a bowling ball down an ally

-kicking a soccer ball in the air

Which of the following examples can be added to his list:

• holding a baseball bat

• wearing a catcher's mitt

• throwing a football

• watching a hockey game

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

. Marcus sets up a glass with some ice cubes, water, and a thermometer as shown below. He watches the thermometer and it slowly begins to show a decrease in temperature. How can Marcus best explain why the temperature is decreasing?

• The ice slowly begins to evaporate.

• The water slowly begins to freeze.

• The heat from the water moves into the ice.

• The coldness from the ice moves into the water.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Melody makes a poster for science class that shows examples of good insulators. Which of the items does NOT belong on Melody's poster?

• metal container

• plastic bowl

• styrofoam cup

• wooden spoon

Tags

NGSS.MS-PS3-3