LEAP Review Science

Use the information and your knowledge of science to answer the question.

A builder compares roof designs for a house to be built in an area that has high winds. Which statements best describe a design that will protect the roof of a house in an area with high winds?

Select the two correct answers.

• The best design stops the greatest amount of wind from blowing across the roof.

• The best design allows the roof to stay on the house even when strong winds blow.

• The design of roof 1 is best, because wind blows past the walls of the house.

• The design of roof 2 is best, because no wind is trapped by the roof.

• The design of roof 3 is best, because very little wind is trapped by the roof.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

Use the information and your knowledge of science to answer the question.

Session 1 The diagram shows two parent horses and their foal.

Which statements identify traits the foal most likely inherited from its parents?

Select the two correct answers.

• gray hair from its mother

• a white tail from its mother

• a solid hair color from both parents

• a spotted hair pattern from its father

• white hair on its face from both parents

Tags

NGSS.MS-LS4-4

Use the information and your knowledge of science to answer the question. People need vitamin D to help their bones get enough calcium so that the bones can be strong. People can get vitamin D from milk, fish, and mushrooms. People’s bodies can also make vitamin D when their skin absorbs light from the Sun.

Which situation will most likely cause a person’s bones to become weak?

• The person spends a lot of time outside.

• The person avoids foods with vitamin D.

• The person eats cereal with milk for breakfast each morning.

• The person eats lots of fish that provide vitamin D.

Tags

NGSS.MS-LS1-7

Use the information and your knowledge of science to answer the question. Session 1 Sam found a figure of animal fossils in rock layers. Animal Fossils Found in Rock Layers.

Which claims can best be supported by the fossil record in the figure? Select the two correct answers.

• The type of animal that formed fossil Y existed for only 50 million years.

• The type of animal that formed fossil W existed for the longest period of time.

• The type of animal that formed fossil X was the last of the animals to die out.

• The type of animal that formed fossil Y died out more than 350 million years ago.

• The type of animal that formed fossil X could be found on Earth more than 300 million years ago.

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

Use the information and your knowledge of science to answer the question. The lined snake lives in the central United States. A lined snake is shown in the picture.

In which way will this road most likely affect the snakes in the area?

• More snakes will die because they will have less grass to live in.

• More snakes will die because new predators will move into the area.

• More snakes will survive because they will be able to find more food to eat.

• More snakes will survive because they will have better places to sun themselves.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Use the information and your knowledge of science to answer the question. Session 1 Black carp are fish that were brought to the United States in the 1970s. Some black carp escaped into rivers during floods. They began to eat mussels and snails. The way mussels and snails feed helps clean the water in a river.

Which effects will most likely be caused by introducing black carp into new ecosystems? Select the two correct answers.

• Other types of fish will find new food sources.

• Some types of snails will disappear from the ecosystems.

• The water in rivers will become dirty as black carp eat more mussels.

• Plants that live in rivers will be healthier because fewer nutrients will be in the water.

• The number of large predators will increase because they will have more kinds of fish to eat.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-2

Use the information and your knowledge of science to answer the question. Jacob investigated the strength of magnets by playing with magnetic train cars. He slid two cars toward each other. He tried different combinations of the train cars, as shown in the table.

Which statement best explains the pattern in Jacob’s observations?

• Two strong magnets will have a strong attractive force when the same poles face each other.

• Two strong magnets will push away from each other with a great force when the same poles face each other

• Two weak magnets will push away from each other with a great force when the same poles face each other.

• One strong magnet and one weak magnet will have a strong attractive force when the same poles face each other.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5