Parts of the Eye
Animal Senses
Animal Survival
Properties of Light
Science Words
100
This part of the eye opens and closes to let in different amounts of light.
pupil
100
True or False
If an animal has very small eyes, it probably does not rely on its eyes as its main sense?
Yes or True
100
Animals use their senses to live and __________.
survive
100
True or False
We need light to be able to see.
True
100
Light comes from a light ___________.
source
200
This structure is a vital link between your eyes and your brain, carrying electrical impulses that let you see.
optic nerve
200
True or False
A snake relies on its tongue to feel where it is going.
No or False
200
An animal that is hunted is the ____________.
prey
200
Another word for light bouncing off an object.
reflect
200
An_____________ is a term for the process of finding an answer to a science question.
investigation
300
These receptors in the eye respond to light.
photoreceptors
300
Animals like dolphins and bats use a sense called ____________ to communicate.
echolocation
300
The animal that does the hunting is the _________.
predator
300
True or False
Light is a wave.
True
300
When scientists are ready to test an idea, they perform an ________________.
experiment
400
pupil
400
True or False
When an animal has large ears, it probably uses its ears to hide from predators.
No or False
400
What does an animal use to remember if prey is good or not good to eat?
memory or brain
400
True or False
We cannot see if there is only a small amount of light.
False
400
When scientists want to test or show how a science idea works. They create a ____________.
model/simulation
500
Special cells in your ______________ react to light and pass signals to your brain that lets you see the world around you.
retina
500
True or False
An animal probably has low sensitivity photoreceptors if it is active in the day.
Yes or True
500
Animals that are nocturnal have ___________ sensitivity light receptors.
high
500
A single wave/particle of light is called a __________.
photon
500
Scientists only change one _______ in an experiment.
variable