A lamp is on in a room, and an apple sits on the table. What has to happen before a student can see the apple?

A teacher closes the blinds and turns off every light, so no light at all enters the classroom. What will the students be able to see?

On a sunny afternoon a girl looks at a tree in the park. Which path does the light take so that she can see the tree?

A mirror hangs inside a closet. With the door shut, no light at all gets in. Can a student standing in the closet see herself in the mirror?

Sunlight strikes a classroom wall. The wall absorbs some of the light and reflects the rest. Which light lets a student see the wall?

In a dim room, a glowing light bulb is easy to see from far away, but a soccer ball on the floor is much harder to see. Why?

A book lies on a desk in a room lit by one lamp. When Ben slides a large board between the lamp and the book, the book can no longer be seen. What does this show?

Maya cannot see around a corner, so she holds a mirror out past the wall and now sees the hallway. How does the mirror let her see what is around the corner?

A cyclist rides at night wearing a jacket with a shiny strip. Car headlights hit the strip, and the driver sees the cyclist easily. How does the strip help?

It is dark outside and the kitchen light is on. When Maya looks at the window, she sees herself instead of the yard. What best explains this?

A ceiling lamp shines on a poster on the wall. The river on the poster looks blue to the students. Why does the river look blue?

We can see the Moon because it reflects light from the Sun into our eyes.

A girl is reading a book. Light bounces off the page and enters her eyes. What happens next so that she can see the words?

Which object is a source of light?

True or False: Sunlight can travel through empty space with no air, so it can reach the Moon and bounce back to Earth.

How does light usually travel through air?

Which material is transparent?

A frosted shower door lets light through but makes objects look blurry. What kind of material is it?

Which object is opaque?

What causes a shadow to form?

True or False: A shadow is usually on the opposite side of an object from the light source.

What happens when light hits a smooth mirror?

Which surface is best for seeing a clear reflection?

True or False: Rough surfaces can reflect light, but they scatter it in many directions.

A firefly glows in a dark yard, and a cat's eyes seem to shine when a flashlight beam hits them. Which one is making its own light?

A shoebox has its lid taped shut so that no light at all can get inside, and a ball sits inside the box. Can anyone see the ball while the lid stays taped shut?

Which part of your body detects light so you can see?

Light from the Sun takes about 8 minutes to reach Earth. Even the fastest spacecraft would need months to travel that far. What does this show about light?

Which statement about bright light is safest?

True or False: You can see a book on your desk because your eyes send out light that lands on the book.

A calm puddle after rain shows a clear picture of the clouds above it. What does this show about smooth, still water?

A rainbow shows that white sunlight is made of _____.

Which color of shirt reflects the most light on a sunny day?

Why does a black shirt often feel warmer in sunlight than a white shirt?

True or False: In a dark room, Ben shines a flashlight at a mirror on a slant. The beam bounces off on a slant going the other way.

What happens to most light when it hits black paper?

Which setup would make the darkest shadow?

If a flashlight is moved closer to an object, what often happens to the object’s shadow on a wall?

Which example shows reflection?

True or False: A sunbeam slanting through a dusty room can be seen because dust specks in the air reflect some of its light into your eyes.