Physics / Energy
What force pulls objects toward the earth?
Gravity
What layer of the Earth do we live on?
Crust
What galaxy do we live in?
The Milky Way
What is the chemical symbol for water?
H2O
What organ pumps blood through the body?
Heart
What are the 3 main states of matter?
Solid, Liquid, Gas
What is the hardest naturally occurring substance on earth?
Diamond
What does STEM stand for?
Science, Technology, Engineering, Math
What kind of change happens when water freezes, chemical or physical?
Physical Change
What process allows plants to turn sunlight into food?
Photosynthesis
What form of energy comes from moving objects?
Kinetic Energy
What is the process of rocks breaking down called?
Weathering
Who invented the equation E=MC2?
Albert Einstein
What is the smallest particle of an element?
Atom
What is the basic unit of life?
The Cell
The concept of gravity was discovered by which famous physicist?
Isaac Newton
What scale is used to measure the strength of earthquakes?
Richter Scale
What is it called when a star explodes?
Supernova
What do we call a substance made of two or more elements combined?
Compound
What gas do humans need to breathe to stay alive?
Oxygen
What is Isaac Newton's 3rd law of motion?
Every action has an equal and opposite reaction.
What type of rock forms from cooled lava or magma?
Igneous Rock
How many hearts does an octopus have?
3
What is the pH level of pure water?
7
The Nucleus