INVESTIGATING LENSES 6TH GRADE

What do the eyes and the camera have in common?

• Both of them have a lens.

• Both of them are black.

• Both of them are expensive.

What is a lens?

• A curved piece of clear material.

• A flat piece of clear material.

How is the vision of a person when their eyes don't work well?

• Blurred

• Black and white.

How can the blurred vision be fixed?

• By wearing sunglasses.

• By wearing spectacles.

How is the vision of short-sighted people?

• They can see close things clearly but not things that are far away.

• They can see far-away things clearly but cannot concentrate the light from nearby things enough.

Who tests your eyes with a chart of smaller and smaller letters?

• A doctor.

• An optician.

• A scientist.

A short sighted person can be helped by wearing...

• concave lenses.

• convex lenses.

• sunglasses.

A long-sighted person can be helped by wearing...

• convex lenses.

• concave lenses.

• a microscope.

TELESCOPES, MICROSCOPES and CAMERAS are...

• examples of optical instruments.

• examples of medicines.

• examples of opticians.

What can scientists do with optical instruments?

• Can see distant planets and stars.

• Can make music.