Matter & Energy
What are the three states of matter?
What are solid, liquid, and gas?
What causes day and night?
What is Earth's rotation?
What is a food chain?
A diagram showing who eats whom in an ecosystem.
What is a push or a pull called?
What is a force?
What tool is used to measure temperature?
What is a thermometer?
What is it called when a liquid becomes a gas?
What is evaporation?
What tool do we use to observe stars and planets?
What is a telescope?
What are producers in a food chain?
What are plants?
What force pulls things toward the Earth?
What is gravity?
What is the first step in the scientific method?
What is asking a question?
Which part of an atom has a positive charge?
What is a proton?
What are the four layers of Earth?
What are crust, mantle, outer core, and inner core?
What do we call animals that eat only plants?
What are herbivores?
What tool is used to measure force?
What is a spring scale?
What is a hypothesis?
An educated guess.
What is the law that says energy cannot be created or destroyed?
What is the Law of Conservation of Energy?
What is the movement of one object around another in space called?
What is revolution?
What is the role of decomposers?
They break down dead organisms.
What is friction?
A force that slows things down when they touch.
What is used to compare results in an experiment?
What is a control?
What is the difference between a physical change and a chemical change?
A physical change changes form, a chemical change creates a new substance.
How do weathering and erosion shape the Earth?
They break down and move rock and soil.
What happens when an ecosystem's balance is disturbed?
Populations can increase or decrease, affecting all organisms.
What happens when balanced forces act on an object?
The object stays still or moves at a constant speed
What is the difference between an observation and an inference?
An observation is what you see, an inference is what you think based on what you see.