Cell-ebrate Science!
A cell
What is the smallest living unit of a plant or animal?
A microscope
What tool helps scientists see objects too small to see clearly with their eyes?
Tissue
What is a group of similar cells working together called?
The skin
What is the largest organ of the human body?
The heart
What organ pumps blood throughout your body?
The nucleus
What part of a cell controls its activities?
The eyepiece
What part of a microscope do you look through?
An organ
What is a structure made of different tissues working together called?
The epidermis
What is the outer layer of your skin called?
The lungs
What organs help you breathe by taking in oxygen?
The cell wall
What strong outer layer helps a plant cell keep its shape?
An amoeba
What is a tiny, single-celled organism that can change its shape?
An organ system
What do we call a group of organs working together to perform a major job?
The dermis
What is the deeper skin layer beneath the epidermis called?
The skeletal system
What system gives your body support and helps protect your organs?
Chloroplasts
What green structures in plant cells help them make food using sunlight?
To make it appear larger
What does it mean to magnify an object?
Cell → tissue → organ → organ system
Put these in order from smallest to largest: organ, cell, organ system, tissue.
Fingerprints
What special patterns on your fingertips help identify you?
The skull protects the brain; the ribs help protect the heart and lungs.
What bones protect your brain, and what bones help protect your heart and lungs?
A cell wall and chloroplasts
Name two structures that plant cells have but animal cells do not.
By extending parts of its body called pseudopods, or false feet
How does an amoeba move and capture food?
Because it contains different types of tissues working together to digest food.
Why is your stomach considered an organ instead of a tissue?
Examples: nerves sense touch; blood vessels carry blood; sweat glands produce sweat
Name two things found in the dermis and explain one job they do.
Muscles pull on bones at joints to move the body.
How do the skeletal and muscular systems work together to help you move?