What layer of Earth do we live on?
The crust.
What do we call water that falls from the sky?
Precipitation.
What are the three states of matter?
Solid, liquid, and gas.
What part of a plant makes food?
The leaves.
What force pulls objects toward the ground?
Gravity.
What causes day and night on Earth?
Earth’s rotation.
What tool measures temperature?
A thermometer.
What is a property you can observe without touching the material?
An observable property like color, shape, or size.
What is a habitat?
The environment where an organism lives and gets what it needs.
A push or pull is called what?
A force.
Name the inner planets in our solar system.
Mercury, Venus, Earth, or Mars.
What is climate?
The long-term pattern of weather in an area.
What is a solution?
A mixture where one substance dissolves evenly into another.
What is a producer in a food chain?
An organism (usually a plant) that makes its own food.
What is friction?
A force that slows or stops motion when two surfaces rub.
What causes Earth’s seasons?
The tilt of Earth’s axis as it revolves around the sun.
Which one of the following slow or block heat transfer: Conductors, Insulators, Heaters
Insulators
What makes a chemical change different from a physical change?
A new substance is formed in a chemical change.
What structure in a cell controls the cell’s activities?
The nucleus.
What is the formula for speed?
Speed = distance ÷ time.
What force keeps planets in orbit around the sun?
Gravity.
What is it called when water forms and falls?
Precipitation
How does density determine whether an object sinks or floats?
Objects with greater density than the liquid sink; less density means they float.
What is the name of the process plants use to make food?
Photosynthesis
Explain Newton’s Third Law of Motion.
For every action, there is an equal and opposite reaction.