EOY CFA Review

If you lived on Neptune, how would the appearance of the sun change?

• The sun's shape would appear different.

• The sun would appear brighter.

• The sun would appear less bright.

• The sun would appear larger.

Answer explanation

As you move closer to the sun, it appears brighter and larger. As you move away from the sun, the opposite is true.

Tags

NGSS.MS-ESS1-1

Which matter from the ecosystem do water weeds need to get so that they can make food?

• scales from the fish

• water from the pond

• nutrients from the pond mud

• waste materials from the snail

Answer explanation

Some of the other things will HELP the weeds, but without water, they're done!

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-1

NGSS.MS-LS2-3

A farmer is evaluating four methods of preventing farm runoff from reaching the nearby streams and rivers.

Which method would be best for the farmer to use?

• Build concrete canals on the farm to help water drain into a nearby lake.

• Graze animals and plant crops on the sides of hills so that runoff flows more quickly.

• Develop wide ditches filled with plants to give the runoff more time to soak into the ground.

• Remove trees and grasses from the sides of the rivers and replace them with barriers made of rocks.

Answer explanation

If the runoff has more time to soak into the ground, by the time it reaches the rivers and streams the toxins will have decreased.

Tags

NGSS.MS-ESS3-3

In which image will the flashlight appear dimmest?

• Picture 1

• Picture 2

• Picture 3

• Picture 4

Answer explanation

The closer you are to an object the brighter it seems and vice-versa.

Tags

NGSS.MS-PS4-2

If a substance is in a leak-proof container, does the mass of the substance change when it changes state? For example, when a liquid changes to solid or a gas.

• Yes

• No

• Sometimes

• None of the above.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

What is the best way to ensure the mass of two liquids stays unchanged when mixed?

• Leave the container uncapped.

• Put the container in the freezer.

• Put a cap on the container.

• Mix it with a 3rd substance.

Answer explanation

By putting a cap or stopper on the container and measuring the mass before and after mixing, you can make sure none of the substance spills or evaporates (as a gas).

Tags

NGSS.MS-PS1-5

How does the growth of cities negatively impact animals?

• Animals may have trouble finding food.

• Animals may have trouble finding available space to build their homes.

• The growth of cities has no negative impact on animals.

• Both 1 & 2

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of this is at the beginning of any food chain?

• food source

• producer

• consumer

• prey

Sam wants to add labels to her simple model of the pond ecosystem. the model to explain how matter moves through the ecosystem. Which statement below is correct AND describes movement of matter in the ecosystem?

• The sun provides matter that helps the algae grow.

• Shrimp gets nutrients from the bacteria.

• Algae gets energy from the sun.

• Bacteria recycle waste materials in the ecosystem.

Tags

NGSS.MS-LS2-3

A group of students created a circle graph that shows the distribution of water on Earth. Which statement best describes the distribution of water on Earth?

• Most of Earth’s water is found in the oceans.

• Most of Earth’s water is found in rivers.

• Most of Earth’s water is found in glaciers.

• Most of Earth’s water is found underground.

Tags

NGSS.MS-ESS2-4