Cells & Organelles
Characteristics of living Things
Organs
Organ Systems
Fun Facts
100

The “control center” of the cell.

What is the nucleus

100

All living things need this clear liquid to survive.

What is water

100

The organ that pumps blood through your body

What is the heart

100

This system carries blood through the body

What is the circulatory system?

100

This organ is the hardest in the body

Bone (or Tooth)

200

The part of the cell that makes energy, often called the “powerhouse.”

What is the mitochondria

200

All living things can make more of their own kind.

Reproduction 

200

The organ that helps you breathe.

Lungs

200

This system takes in oxygen and lets out carbon dioxide.

What is the respiratory system

200

The number of bones in an adult human body (close guess counts).

206

300

The jelly-like fluid inside the cell.

What is cytoplasm

300

The process by which living things break down food to get energy.

What is Digestion 

300

The largest organ of the body.

Skin

300

This system protects your body and includes the skin.

What is the integumentary system

300

The muscle that never gets tired.

What is the heart

400

The part of the cell that found surrounding the outside of the cell

Cell membrane

400

All living things respond to changes in their environment. These changes are called ___.

Stimuli or Stimulus 

400

The organ that absorbs food and nutrients in your stomach and intestines.

 What is the digestive system

400

This system sends messages through your body using the brain, spinal cord, and nerves.

What is the nervous system

400

The part of your body that keeps growing your whole life

ears or nose

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