STAAR Science

Which of the following is the most likely food source for a carnivore?

• A plant

• The Sun

• An Animal

• A dead tree

In a food chain, where does the energy go after the secondary consumer dies?

• Back to the sun

• To the producers

• Into air, becomes wind

• To decomposers

Tags

NGSS.MS-LS2-3

How are organisms, such as snakes, cacti and coyotes able to survive in harsh desert conditions?

• Over thousands of years these organisms have developed adaptations to survive in arid climates

• These organisms migrate out of the desert during the summer months

• These organisms work together to find sources of food and water

• Snakes, cacti and coyotes are all aquatic species that live in ponds and rivers during the hot day

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS4-4

Why is it important to form a hypothesis before performing an experiment?

• Developing a hypothesis ensures that the lab will be safe

• The experiment will take too much time to complete if there is no hypothesis

• The hypothesis tell what the experiment is go to be testing

A student is working on a science project and is going through each step of the scientific method. After the student conducts his or her first experiment and records the results of the experimental test, what should the student do next?

• communicate the results

• Draw a conclusion

• Repeat the experiment

• Create a hypothesis

Electrical cords, such as the cords of a television or the cord on a toaster, are covered with rubber or plastic. What would you expect to happen if a portion of the rubber covering were missing when you tried to plug the cord in?

• The appliance would not work after it plugged in

• The person plugging the appliance in would feel an electric shock

• The cover does not matter, all appliances would work normally

What most likely happened to the dead plants and animals?

• They were eaten by scavengers.

• They were washed away by water.

• They became fossil fuels.

• They became an underground aquifer.

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-3

Which statement correctly describes the transfer of energy in a food chain in this wetland?

• Energy is transferred from hawks to shrews to grasshoppers to marsh grasses.

• Energy is transferred from marsh grasses to crickets to hawks to frogs.

• Energy is transferred from grasshoppers to crickets to frogs to hawks.

• Energy is transferred from cattails to crickets to shrews to hawks.

Tags

NGSS.MS-LS2-3

Some students are feeding a crab in an aquarium. They use tongs to place the food directly in front of the crab. The students look through the side of the aquarium. They notice that the image of the tongs appears to break as the tongs enter the water. Which property of light are the students observing in this situation?

• Light can be refracted and separated into different colors as it moves from air to a different medium.

• Light is refracted as it moves from one medium to another medium.

• Light travels in a straight line and can be reflected off the surface of water

• Light is absorbed by water and reflected off glass.

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Tags

NGSS.MS-PS1-2