A drummer strikes a drum at the far end of the gym, and a moment later you hear the beat. How did energy travel from the drum to your ears?

After a sunny morning, a metal park bench feels warm even though nobody touched it. What best explains the warm bench?

A toaster is plugged in and its wires begin to glow orange. What is this device doing with the energy carried to it by the electric current?

Marcus rests a metal spoon in a bowl of hot soup. Two minutes later the handle sticking out of the soup feels hot too. What happened?

A cook needs a pan handle that stays cool while the pan sits over a flame. Which material should the handle be made of?

During a storm, thunder booms outside and the closed classroom window rattles in its frame. What does the rattling window show?

A campfire transfers energy to the campers sitting around it as both light and heat.

Sunlight shines through a classroom window and lights up a poster on the far wall. How did the light energy travel from the window to the poster?

A large speaker is turned up loud, and grains of rice resting on its surface start to bounce and jump. What is the bouncing rice the best evidence of?

On a cold morning Ana rubs her palms together quickly and they begin to feel warm. What best explains the change?

A small fan is wired to a flat panel resting in bright sunlight, and the fan starts to spin. What is the panel doing?

A material such as the metal in a cooking pot, which lets heat move through it easily, is called a ___.

Two students stand beside a ringing handbell. One walks far across the schoolyard, and the bell sounds much quieter to her. Why?

On a hot day a camper wraps her cold water bottle in a thick foam sleeve. Why does the foam help keep the water cold?

Which form of energy lets you see objects?

A ringing bell transfers energy mostly as which form?

Heat energy always makes objects colder.

A cold can of soda is taken from the refrigerator and left on a kitchen counter on a warm day. Which way does heat energy move between the counter's air and the can?

A tall tree blocks the sunlight and creates a cool, shaded patch of grass beneath it. What form of energy is the tree blocking from reaching the grass?

When a pot of water is heated on a stove until it starts to bubble and boil, this bubbling is evidence that heat energy was transferred into the water.

A whistle is blown underwater in a swimming pool, and a swimmer whose head is also underwater can still hear it faintly. How does the sound energy reach the swimmer's ears?

When you clap your hands, some energy changes into which form?

Energy can be transferred from place to place by sound, light, heat, and electric currents.

A firefly's abdomen glows on a summer night. What form of energy does the firefly give off that people can see?

A mirror on a wall catches sunlight and reflects a bright spot onto the classroom ceiling. What form of energy created the bright spot on the ceiling?

Cold from the ice cubes moves into a glass of juice, and that is what makes the juice colder.

A pat of butter is placed on a hot skillet and quickly turns soft and shiny. What is the best evidence that heat energy was transferred to the butter?

Two students talk to each other using a paper-cup-and-string telephone stretched tight across the room. What carries the energy of their voices along the string?

Sound can travel through empty space, where there is no air or any other matter.

Which best shows energy being transferred by heat?

A flashlight with working batteries changes battery energy into which form you can see?

Energy is present only when an object makes sound.

A tuning fork is struck and then touched to the surface of a bowl of water. What is the best evidence that energy was transferred from the fork to the water?

A hot clothes iron is set down on a folded towel while it cools. Which way does heat energy move between the iron and the towel?

Sunlight cannot warm a dark car seat, because light does not carry any energy.

In a working fan, electrical energy changes mostly into which form?

During a storm, Lena sees a flash of lightning and then hears the thunder a few seconds later. Why does she see the flash first?

A lighthouse beam sweeping across the dark ocean at night carries light energy to distant ships.

A battery is connected by wires to a small bulb, and the bulb lights up. How does energy get from the battery to the bulb?

Why can you feel warmth from a campfire even if you do not touch it?