Science grade 4: u13:l3: Light

Light is a form of .............we detect with our eyes.

• energy

• heat

• sound

A tool used to separate white light into different colors is a(n) .............

• lightbulb

• prism

• lighter

The colors that make up white light are called the ................

• invisible spectrum

• spectrum

• visible spectrum

Light rays ................... as they pass from one material to another

• bend

• change

• move

Light travels more slowly through ............... materials.

• lighter

• heavier

• denser

A lens is a tool used to .............., or bend, light.

• bent

• curve

• refract

A lens that bends light outward, making objects look

smaller, is called a(n) ...............

• concave lens

• lens

• convex lens

A

lens that bends light toward its center, making objects

look bigger, is called a(n) .............

• concave lens

• special lens

• convex lens

The lens of an eye focuses images on the .............

• retina

• brain

• nerve

The optic nerve sends images to the ..................

• head

• brain

• outer ear