This state of matter has a definite shape and volume.
What is a solid?
This force pulls objects toward the Earth.
What is gravity?
The main source of energy for life on Earth.
What is the sun?
Materials that allow electricity to flow through them are called this.
What are conductors?
This causes the sun to appear to rise and set each day.
What is the rotation of the Earth?
When water changes from a liquid to a gas, this process happens.
What is evaporation?
The term for a push or a pull on an object.
What is a force?
This type of energy travels in waves and allows us to see.
What is light energy?
Rubber and plastic are examples of materials that do not conduct electricity, known as this.
What are insulators?
This is what causes day and night on Earth.
What is Earth's rotation on its axis?
What is mass?
This force slows down moving objects and is caused by surfaces rubbing together.
What is friction?
This happens when heat moves from a warmer object to a cooler one.
What is heat transfer?
This property of a material determines whether it is attracted to a magnet.
What is magnetism?
These objects in the sky reflect the sun’s light, making them appear to glow at night.
What are the moon and stars?
This tool is used to measure the volume of a liquid.
What is a measuring cup?
This type of energy is caused by an object's motion.
What is kinetic energy?
The two main types of energy are kinetic and this.
What is potential energy?
Metals are good at conducting this type of energy.
What is heat energy?
Shadows occur because this cannot pass through solid objects.
What is light?
This property of matter determines whether an object will sink or float in water.
What is density?
When you apply this to an object, its motion or shape changes.
What is work?
This type of energy is stored in food and fuel.
What is chemical energy?
This is the ability of a material to return to its original shape after being stretched or compressed.
What is elasticity?
The term for the apparent changing shapes of the moon.
What are moon phases?