Scientific Method
What do you call the question you want to answer in an experiment?
Hypothesis
Water turning into ice is called?
Freezing
The planet we live on
Earth
This organ pumps blood throughout the body.
The heart
What gas do humans breathe in to stay alive?
Oxygen
Looking at or noticing something carefully
Observation
Particles in this state move freely and fill their container.
Gas
The center of our solar system
The sun
These help you see
Eyes
What color do you get when you mix red and yellow?
Orange
The thing you change on purpose in an experiment.
Variable
Solid, liquid, or gas: which has a definite shape?
Solid
The force that pulls objects toward the center of the Earth.
Gravity
The system that breaks down food.
Digestive system
What is H₂O more commonly known as?
Water
The thing you measure or check in an experiment.
Result
Liquid water turning into vapor is called?
Evaporation
The natural satellite that orbits Earth.
Moon
How many bones does the human body have
206
What part of a plant grows underground and absorbs water?
Roots
The part of an experiment you keep the same to make it fair.
Constant
Matter is made of these tiny building blocks.
Atoms
A planet that was reclassified as a "dwarf planet"
Pluto
The largest organ in the human body?
Skin
What do you call the process when a caterpillar becomes a butterfly?
Metamorphosis