Category 1: Light & Vision
What must light do off an object for an animal to see it?
What is reflect (or bounce)?
What structures inside the eye detect light rays entering through the pupil?
What are light receptors?
Which sensory structures allow animals to detect scents carried through the air?
What are noses (or smell receptors)?
Why is it important to change only ONE variable at a time in a scientific investigation?
What is to determine which specific change caused the observed effect?
Where does light enter an animal's eye?
What is the pupil?
What pathway carries signals from light receptors in the eye to the brain?
What are nerves (or the optic nerve)?
What do ears detect to help animals stay safe or locate prey?
What are sound waves/sounds?
In an experiment testing if a bird uses smell or vision to find food, what factor should stay the same?
What is the type of food used
True or False: Animals can see objects in total darkness as long as they have good eyesight.
What is False? (Light must bounce off an object and enter the eye to see)
How does the brain determine if an object an animal sees is food?
What is by processing the image and comparing it with known memories?
What are body structures called that gather information from an animal's environment?
What are sensory structures (or senses)?
If scientists put food in a container wrapped in thick yarn, which two senses are blocked?
What are sound and scent (hearing and smell)?
What complete path does light take when a great horned owl sees a mouse at night?
What is traveling from a light source, bouncing off the mouse, and entering the owl's eye?
What organ processes signals sent from sensory receptors into visual images?
What is the brain?
What TWO sensory structures that directly help animals locate food in dark or concealed places
What are eyes and noses?
What is the term for a factor in an experiment that a scientist deliberately changes?
What is a variable?
Why will an animal fail to see a mouse placed inside a dark, opaque, solid box?
What is because light reflected off the mouse cannot reach the animal's eyes?[
Describe the step-by-step process from when light hits the eye to when an owl catches its prey.
What is: Light receptors detect light - send signals through nerves to the brain- the brain turns signals into an image and compares it to memories - brain decides to catch the food?[
Why might an animal rely on its nose and ears more than its eyes at night?
What is because there is less light available for vision, making smell and sound more reliable?
If students test an animal inside a completely dark room, which sensory structure's function are they testing/blocking?
What is vision (eyes / sight)?