Isaiah rolls a tennis ball along the ground. Which of the following best explains what will happen if balanced forces act on the ball?

• The ball’s motion will not change.

• The ball’s direction will change.

• The ball’s speed will change.

• The ball will stop moving.

Tags

NGSS.MS-PS2-2

In a food chain, energy from the sun is transferred from one organism to another. Which of the following food chains shows the transfer of energy from a producer to a consumer to another consumer?

• leaf ---> caterpillar ---> robin

• caterpillar ---> leaf ---> hawk

• hawk ---> leaf ---> caterpillar

• robin ---> caterpillar ---> leaf

Tags

NGSS.MS-LS2-3

The vine called kudzu covers large areas of Florida.

This plant is both helpful and harmful to other organisms.

Which of the following is NOT a way that kudzu helps other organisms?

• by releasing oxygen

• by blocking sunlight

• by holding soil in place

• by providing food for animals

Some characteristics of animals are inherited, and some are learned. Miguel observed different characteristics of animals. The table below shows how he recorded and classified the different kinds of characteristics he observed.

Which characteristic did Miguel record in the wrong column of the table?

• A dog has curly fur.

• A bird has a long beak.

• A boy knows how to play the clarinet.

• A dog knows how to fetch on command.

Charles pushes a shopping cart. How can he increase the speed of the cart?

• by increasing the mass of the cart

• by increasing his own mass

• by pushing with more force

• by pulling with less force

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Angela and John conducted separate investigations to find out if yeast makes banana slices decay faster. They each put one banana slice in a jar by itself and another banana slice in a jar with some yeast. After 10 days, Angela concluded that yeast does make banana slices decay faster. After 7 days, Juan concluded that yeast does not make any difference. Which of the following best compares their investigations?

• The investigations are the same, but the results are different.

• The results are the same, but the investigations are different.

• The investigations and the results are the same.

• The investigations and the results are different.

Two beakers with equal amounts of liquids are shown above. One beaker contains water and the other beaker contains vinegar.

Which property provides the best way to identify the kind of matter in each beaker?

• color

• hardness

• smell

• volume

A lamp represents the sun in a model of the solar system. Different pieces of fruit represent the inner planets. The pieces of fruit are placed in the following order, from closest to farthest from the lamp: a grape, an apple, an orange, and a plum. Which fruit represents Earth in this model?

• the plum

• the grape

• the apple

• the orange

In an energy transformation, energy is transformed from one form into another. Jackson drew four pictures to show four different kinds of energy transformations. Which of the following pictures that Jackson drew represents electrical energy being transformed into heat energy?

• 
• 
• 
• 

Because consumers cannot make their own food, they must get energy from other consumers or producers. Which of the following statements describes an event in which the energy stored in a producer is passed to a consumer?

• A deer eats a shrub.

• An alligator consumes a sunfish.

• Fungus grows in soil under a tree.

• A group of vultures feed on a dead lion.

Tags

NGSS.MS-LS2-3