Cfe Comprehensive Science

Earth’s crust is made up of large and small plates that are in slow, constant motion, driven by convection currents in Earth’s mantle. Scientists who study Earth have consistently observed that most earthquakes and volcanoes occur where plates meet. Which of the following best describes or categorizes plate tectonics?

• A scientific law

• A scientific theory

• A hypothesis

• A prediction

Tags

NGSS.MS-ESS2-3

What is true about animal cells?

• Both have a cell wall to give them support.

• Both have a large vacuole to store water.

• Both use mitochondria to release energy.

• Both use chloroplasts to store energy.

Tags

NGSS.MS-LS1-2

What is an organism that produce energy from sunlight?

• Worm

• Fish

• Snake

• Grass

Tags

NGSS.MS-LS1-6

Which of the following is produced during the process of cellular respiration?

• Carbon dioxide

• Sodium Cloride

• Oxygen

• Sugar

Tags

NGSS.HS-LS1-7

The diagram shows how carbon is cycled through an ecosystem. What is one way this diagram could be adjusted to model how energy is conserved in living systems?

• Include the Sun giving energy to plants

• Replace the title “The Carbon Cycle” with a new title “The Energy Cycle”

• Only include the processes of photosynthesis and cellular respiration.

• Remove the non-living parts of the diagram

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Sam has been asked to provide an example of how carbon is converted from a living form to a nonliving form. Which example should she use?

• Carbon dioxide in the atmosphere is absorbed by an ocean.

• Sugar in animals is converted into carbon dioxide during cellular respiration.

• Calcium carbonate in rocks is converted into sediment through weathering.

• Carbon dioxide from the air is converted into sugars during photosynthesis.

Tags

NGSS.MS-LS1-6

Which change to the setup is least likely to cause an increase production of bubbles?

• Adding a bright light source.

• Adding a source of carbon dioxide to the water.

• Adding a different fluid to the water

• Adding a second plant to the test tube.

Tags

NGSS.MS-LS2-1

Plants get energy from which source?

• Fertilizer

• Soil

• Sunlight

• Water

Tags

NGSS.MS-LS1-6

A mouse’s rate of carbon dioxide output increased. Which of the following most likely happened?

• The mouse went to sleep.

• The mouse ate some food

• The mouse started running.

• The mouse detected an odor.

A student wants to shorten the ripening time for tomatoes. He predicts that the more water the seedlings receive, the faster the tomatoes will ripen. He grows 20 tomato plants in a garden in full sunlight that has dry soil, and 20 tomato plants in the same garden where there is more moisture in the soil. He records the time it takes for fruit to develop and ripen on the plants in each location. What is test variable (independent variable) in this experiment?

• The time it takes for the fruit to develop and ripen.

• The tomato seedlings at different stages of development.

• The amount of sunlight each plant receives.

• The amount of moisture each plant receives.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1