Group 1
Group 2
Group 3
Group 4
(Group 5)
100
What gas do humans need to breathe?
Oxygen
100
What is the process by which plants make their own food?
Photosynthesis
100
What is the basic unit of life?
cell
100
Where does digestion begin?
The mouth
100
What connects one bone to another bone?
Ligament
200
What are the three states of matter?
Solid, liquid, gas
200
Can sound travel through empty space?
No
200
Which body system helps us breathe?
Respiratory system
200
What blood cells help fight infections?
White blood cells
200
What is the main job of the skeleton?
To support and protect the body and help with moveme
300
What force pulls objects toward Earth?
Gravity
300
What part of the cell contains DNA in most eukaryotic cells?
Nucleus
300
What organ controls your thoughts and movements?
Brain
300
What body system moves blood around the body?
Circulatory system
300
What would happen to many animals if all plants disappeared?
Food chains would be disrupted because plants are producers and provide food or energy for many organisms.
400
What is the largest organ of the human body?
Skin
400
How many legs does an insect have?
6
400
Is burning wood a physical or chemical change?
Chemical change
400
How many planets are in our solar system?
8
In order from the Sun: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
400
Which organelle is sometimes called the “powerhouse of the cell”?
The mitochondrion (mitochondria).
500
What happens to liquid water when it gains enough heat?
It evaporates / becomes a gas
500
What is an ecosystem?
Living organisms interacting with each other and with their nonliving environment
500
What is the longest bone in the human body?
The femur
500
What causes day and night?
Earth's rotation spinning) on its axis.
500
What organelle allows plants to perform photosynthesis?
Chloroplast