Category 1: Body Basics
What is the smallest unit of life?
cell
What organ helps you see?
eyes
What part of the eye lets light in?
pupil
Is a hot stove a stimulus or response?
stimulus
What part of a plant makes food?
leaves
Name the correct order: cells → ___ → organs → systems.
tissues
What sense does the nose control?
smell
What part sends signals from the eye to the brain?
optic nerve
Is pulling your hand back a stimulus or response?
response
What do roots help a plant do?
Draw in water and nutrients.
What do organs work together to form?
systems
What sense is connected to whiskers or feet?
touch
What do sound waves travel through to reach your ear?
the air, or directly: outer ear to inner ear
Define “stimulus.”
Something that causes something else to happen.
Name a way an animal uses its sense of smell to survive.
To find food or avoid danger.
What word describes what a structure does?
function
What happens to sound after the ear detects it?
The brain processes the vibration.
What is the correct order for how light helps you see? (4 things)
Light → object → eye → brain
What’s a “response”?
What happens as a result of a stimulus.
What plant movement might happen during the day?
Turning toward the sun.
Explain how skin and bones protect animals.
Skin keeps harmful things out; bones protect soft parts inside.
How do the brain, eyes, and ears work together as a system?
They collect and process information for decisions.
Draw a quick diagram to show how your ear or eye receives signals.
Show Your Model!
Give your own example of a stimulus and response.
Example: Dogs drool when they see food!
Compare how a cat uses at least 3 senses to survive.
Sample: sight to find food, touch to catch food, smell to detect danger.