You drop a pebble into a still pond. Ripples spread out, and a leaf floating far from the splash starts to bob up and down. What traveled from the pebble to the leaf?

A speedboat zooms past a canoe far away. A few seconds later, wake waves reach the canoe and rock it hard from side to side, though the boat never comes near it. What reached the canoe and made it rock?

A buoy bobs gently on small waves. During a storm, the crests rise much higher above the still water line and the buoy bobs much higher too. Which wave property increased?

A toy sailboat bobs gently on small waves. Later, waves with much taller crests toss the same boat up and down far more. What does this show about waves?

A teacher sprinkles rice on one drum, then beats a second drum standing nearby. The rice on the untouched drum jumps. What best explains this?

A student shakes one end of a long rope over and over at a steady pace. The same shape of high points and low points keeps traveling along the rope. What word describes this repeating shape?

A hiker claps loudly near a spiderweb stretched between two branches. The thin strands of the web begin to shiver right after the clap. What carried energy from the hiker's hands to the web?

On a calm day, small waves barely rock a raft anchored offshore. During a storm, much bigger waves reach the same raft and toss it hard enough to snap its anchor line. What does this show about the storm waves?

A truck drives past a house with its music turned up very loud, and the window glass rattles. What made the glass move?

A tsunami reaches a coast as a wave with a very large amplitude. Boats and cars are pushed far inland. What does this tell you about waves?

Ocean waves crash onto a sandy beach day after day for many years. What can these waves do to the beach?

A cork floating on small water waves mostly moves up and down as the waves pass.

Look at the waves in the picture. What is the distance from the top of one wave to the top of the next wave called?

A toy boat floats at one end of a bathtub. A child moves a hand back and forth in the water at the other end, and soon the toy boat starts to rock. Where did the energy that rocks the boat come from?

A leaf floating far out on a pond is carried all the way to the bank by the water traveling forward inside each passing wave.

If you pluck a guitar string, what causes the sound wave?

What can happen to a light beach ball when ocean waves reach it?

A wave can move energy from one place to another without carrying all the matter along with it.

A pool noodle floats near the wave machine in a wave pool. As each wave rolls past, the noodle rises and falls but stays in about the same spot in the pool. What does this show?

A large cruise ship's wake reaches a small dinghy tied at a dock and yanks it hard against its ropes. Earlier, a passing kayak's tiny wake had barely nudged the same dinghy. What does the difference show about the two wakes?

A strand of kelp is rooted to the seafloor. As ocean swells pass overhead, the kelp sways back and forth but stays rooted in the same spot on the bottom. What does this tell you about the swells passing by?

A pebble drops into a pond and sinks to the bottom. The ripples it started keep traveling across the pond even after the pebble stops moving.

Two waves on a lake have crests that rise the same height above the still water. But one wave's crests are much farther apart than the other wave's crests. Which property of the two waves is different?

What happens when you drop a pebble into still water?

You hear a drum across a room because the air itself travels from the drumhead, crosses the room, and arrives inside your ear.

Which statement best describes what a wave does?

A student shakes one end of a rope slowly. Then she shakes it much faster, moving her hand up and down the same distance as before. What happens to the waves on the rope?

When a wave travels along a rope, each part of the rope may move up and down while the wave moves forward.

A student is tapping the surface of a pan of water with one finger. Which change would make the waves in the pan bigger?

A subwoofer speaker plays a deep bass note across a room. A curtain hanging a few feet away starts to flutter, even though nothing is touching it. What carried energy from the speaker to the curtain?

When a passing wave lifts a boat to the very top of the wave, the boat is sitting on the wave's crest.

What might happen to a paper strip held near a loud speaker?

A teacher describes four scenes to the class. Which one is an example of a wave moving an object?

A sound wave can only make an object vibrate if that object is touching the thing that is vibrating.

A wave pool is set to "small waves," and a foam raft floating in it barely moves. When the pool is switched to "big waves," the same raft is tossed much higher. What should you compare to explain why the raft moves more on "big waves"?

Wave A rocks a small fishing float much higher than Wave B rocks the same float a few minutes later. Which wave has the greater amplitude?

True or False: Waves made in a bathtub bounce back when they reach the side of the tub.

When a floating stick moves as waves pass, what is moving the stick?

A student wants evidence that waves are passing through the water in a swimming pool. Which observation would be that evidence?

Moving your hand up and down a bigger distance while shaking a rope makes waves with taller crests.