Level 1, Scientific knowledge and practices
What is an independent variable?
The one thing in the experiment that a scientist can change
What is at the center of every atom
A nucleus
What is radiation
The energy that moves from one place to another.
A force is a
Push or pull
How long is a rotation, how long is a revolution
A revolution is 1 year or 365 days and a rotation is 1 day or 24 hours
Define an inference
An inference is an idea or conclusion that's drawn from evidence and reasoning. Like using your five senses to make an educated guess about what or how something works.
What type of combination is a mixture
Physical
What type of energy is a burning fire
Chemical energy
What causes objects to slow down and stop
Friction
Name the planets in order
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
You compared the amount of sugar in eight different kinds of breakfast cereal. You want to show which kind of cereal has the highest sugar content. Which kind of graph would best communicate your results?
A bar graph
When water changes into water vapor it is called
Evaporation
Potential energy is
Stored energy
What does the measurement N stand for
Newton
What is the asteroid belt
Asteroids that orbit the sun in between Mars and Jupiter
Is this sentence a testable question or a non-testable question, “does a ball roll farther on grass or tile floor?
Testable question
What is weight
The measure of the pull of Earth's gravity
What is needed for a basic circuit?
A power source, a load, and electrical wires.
If the net force is 0 the object is
Not accelerating
What is an atmosphere
An atmosphere is a protective layer of gases that surrounds a planet held together by gravity
What are the three types of investigations?
The three types of investigations are experiments, models, and repeated observation.
What is a solute
a substance that dissolves into another substance to form a solution
What is the main source of all energy?
Almost all energy comes from the sun
What law is acceleration
Newton's 2nd law
What is an astronomer?
A scientist that studies space