Science Test 2
Terms
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- Why do you sometimes see a rainbow in the spray of a sprinkler or a fountain?
- The drops of water refract and separate light into the colors of the spectrum.
- Visible light waves are part of a _______ of waves.
-
spectrum
- A smooth, flat, shiny surface does what to light waves?
- Reflects
- Why can we see clearly?
-
1. We have eyes.
2. There is light.
3. The lens focuses light waves. - What happens to the pupil of the eye in bright light?
- It becomes smaller.
- A picture of an object made by a mirror or lens is a what?
- Image
- As you walk from the sunny outdoors into a darkened room, what happens to your eyes?
- The pupil becomes smaller in the darkened room.
- An object that is red when white light shines on it does what?
- Absorbs all colors but red.
- The light from the moon is ________ sunlight?
- Reflected
- Which color is not a pure color in the visible light spectrum?
- Pink
- Name an object that blocks light.
- A wooden door.
- translucent object
- object that lets some light through such as wax paper
- lens
- Focuses light waves in the eye.
- Pupil
-
part of the eye that regulates the amount of light that enters the eye
- Concave Lens
-
lens that are thinner in the middle than on the edges.
- Convex Lens
-
Lens that is thicker in the middle than on the edges.
- Opaque
- objects that allow no light through
- pigment
- the substance in ink or paint that gives it color
- When you are in the sun, why do you feel cooler in white clothing than you do in black clothing?
- White relfects light and black absorbs light.
- Why do leaves appear green?
- All of the colors are absorbed by the leaf except green.