Science TEKS

What type of energy do you produce when you ride a bicycle?

• sound energy

• solar energy

• light energy

• energy of motion

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Alana was walking with her family along the Mississippi River. As they walked along the levee, Alana was observing the water’s movement. Water was moving past the rocks at a fast speed. When Alana asked her mom about the energy of the water, her mom told her that because the water was moving quickly, that meant it possessed a lot of energy.

Based on this passage, what can you infer about the relationship between speed and energy?

• As an object’s speed increases, its energy decreases.

• As an object’s speed decreases, its energy increases.

• Speed and energy are not connected.

• As an object’s speed increases, its energy increases.

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Scholars built an electrical circuit like the one shown in the diagram. When the switch is closed, energy from the battery lights the bulb. This is evidence that...

• energy can move from place to place.

• only copper can be used for wires.

• batteries will lose energy after time.

• The switch is not needed in the circuit.

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KIPPsters went on a camping trip to Bogue Chitto. They built a campfire so they could sit around and tell ghost stories while roasting marshmallows.

What two types of energy did the fire produce?

• electrical and energy of motion

• solar and sound

• light and heat

• light and chemical energy

When two moving objects collide, the motion of both objects will change. Why does the motion of the objects change during a collision?

• Energy is transferred from one object to the other, causing a change in speed.

• Energy is transferred into heat and sound, causing you to hear the objects.

• Objects lose mass when they collide, so they weigh less.

• The motion of all objects is changing all the time.

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Laila walked into a room. She said, “I can tell that someone has on perfume.” What sense did Laila most likely use to observe that there was perfume?

• taste

• smell

• sight

• hearing

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What external feature of a turtle protects it from predators?

• Its shell.

• Its feet.

• Its skin.

• Its eyes.

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Beavers live in streams, ponds, and marches. Which beaver external features are most useful for swimming?

• webbed back feet and a flat tail

• thick brown fur and small eyes

• sharp teeth and flexible front toes

• pointed nose and small ears

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Which of the following internal structures helps an animal react to stimuli that might be dangerous?

• the heart

• the stomach

• the brain

• the lungs

This illustration shows the relative positions of a light source, an apple, a piece of paper, and a person.

Which of the following best explains why the person shown is not able to see the apple?

• Light cannot reach the apple to reflect off of its surface.

• The piece of paper is reflecting light energy from the light source.

• No light from the light source is able to reach the person.

• The light reflected off of the apple cannot reach the person’s eye.

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