SC Ready Science Review 2

Based on the evidence, which statement differentiates wave C from wave D? (Refer to the diagram showing waves A, B, C, and D.)

• It has a lower frequency and about the same amplitude.

• It has a higher frequency and a much lower amplitude.

• It has a higher frequency and a much higher amplitude.

• It has the same frequency and about the same amplitude.

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NGSS.MS-PS4-1

Compare the two pictures above (Before and After). What caused the dunes to change?

• wind and gravity

• water and heat

• wind and water

• animals and wind

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NGSS.MS-ESS2-2

The man inside this dark cave is using a flashlight to see his surroundings. Which statement BEST explains why his face can be seen, even though the flashlight is pointing away from him?

• The man's body heat is attracting the light, making his face appear bright.

• The cave walls are creating light, which is being absorbed by the man's face.

• The light from the flashlight is reflecting off the cave walls and onto his face.

• The cave's moist air is absorbing the light and transferring it to the man's face.

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NGSS.MS-PS4-2

Which object only requires mechanical energy to perform its main function?

• (Image of an iron)

• (Image of a television)

• (Image of a toaster)

• (Image of a piano)

The table gives information about four types of bears. These bears all have fur that helps them survive in their specific environment. Which type of bear has a hair coat that allows it to live in a warm environment and to eat stinging insects, such as termites, without being stung?

• Sloth bear

• Polar bear

• Grizzly bear

• Black bear

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NGSS.MS-LS4-4

Often, when a large tsunami is headed towards a largely populated city, the area issues an emergency force evacuation of all the people. Which of the following is most likely a method used by scientists to detect large and dangerous tsunamis?

• Astronaut sightings from the International Space Station

• Lighthouses with watchmen posted to watch the ocean and coast

• Deep ocean buoys that measure incoming waves

• Measuring how much the levels of the ocean rise each year

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NGSS.MS-ESS3-2

A model of Earth’s tectonic plates is shown. What will most likely happen as these two plates slide next to each other?

• One will eventually stick to the other and create larger tectonic plates

• One will slide under the other and form a trench or a mountain

• They will bump and skip off each other and form earthquakes

• As they drift away from each other, a trench will form behind them and fill up with hot magma

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NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

How does the item in this image (a megaphone) affect sound waves?

• It softens and shortens sound waves, which makes individual sounds more quiet.

• It squeezes sound waves, which makes them less dense and reduces their distance.

• It completely absorbs and reflects sound waves, making all sounds twice as loud.

• It changes the direction of sound waves, allowing sound to travel greater distances.

Tags

NGSS.MS-PS4-2

An ultrasound creates images like the one of this unborn baby seen here. It works by using high-frequency sound waves that are sent through the body. The waves are "echoed" back to a machine when they reach dense tissues or organs. This is most similar to which of these methods used in another field?

• Businesses use scanners to make photocopies.

• Soldiers use thermal energy to see at night.

• Ships use sonar to detect objects under water.

• Cell phones use satellites to find map locations.

Tags

NGSS.MS-PS4-2

Many birds love to eat peppers that are generally too spicy for humans to regularly eat. Which of the following statements most likely explains why birds are able to eat spicy peppers?

• They drink large amounts of water to help rid themselves of the spicy pepper taste

• They do not have taste receptors that are affected by spicy peppers

• They use the spicy pepper taste to stay warm during colder weather

• The spicier peppers a male bird eats, the less affected he is by the peppers, and the more female birds will be attracted to him