CAST Science Practice Test

CAST Science Practice Test

Assessment

Flashcard

Science

8th Grade

Practice Problem

Hard

Created by

Erica Angelo

FREE Resource

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23 questions

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1.

FLASHCARD QUESTION

Front

Predict the changes in the sea urchin population as the kelp population increases.

Media Image

Back

Sea urchin population decreases

2.

FLASHCARD QUESTION

Front

Use the graphs and the partial food web to predict the changes in the kelp population as the kelp population INCREASES. What will happen to the kelp population?

Media Image

Back

Kelp population decreases

3.

FLASHCARD QUESTION

Front

Select a moon location in the model that supports the explanation that the New Moon phase explains why the disk becomes a ring.

Media Image

Back

2

4.

FLASHCARD QUESTION

Front

Why don't solar eclipses happen every month despite a new moon occurring?

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Back

The model should show that the plane of the Moon's orbit around the Earth is inclined relative to the plane of Earth's orbit around the Sun.

5.

FLASHCARD QUESTION

Front

Leah combined Fe and CuSO4 and measured the masses before and after a reaction. What is the total mass of the reactants?

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Back

96 grams

6.

FLASHCARD QUESTION

Front

After the predator is introduced, which fish has a BETTER chance of surviving?

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Back

dark colored fish

7.

FLASHCARD QUESTION

Front

Why would the dark colored fish have a better chance of surviving after the new predator is introduced?

Media Image

Back

The predator cannot see them as well as the fish of the light color.

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