Grade 4 Science

Our eyes are needed to perceive which of the five sense?

• Smell

• Taste

• Sight

• Touch

Which of the following parts of the eye is the hole that lets in light?

• Retina

• Lens

• Pupil

• Iris

Which of the following part of the eye is coloured?

• Retina

• Iris

• Focus

• Lens

The iris can change the ___________ of the pupil.

• Size

• Colour

• Shape

When it is really dark, the iris will shrink the pupil so that your eye can focus and see clearer.

• True

• False

Where in the eye are rods and cones located?

• Lens

• Optic nerve

• Retina

Rods help us see in the dark and cones help us see colour.

• True

• False

The retina converts:

• Rods into cones

• Images into long-term memories

• Light into electrical signals

• None of the above

The lens of the eye is similar to the lens of which of the following devices?

• Telescope

• Camera

• Microscope

• Magnifying Glass

The ____________ carries nerve impulses from your eye to the part of the brain that controls vision