Energy Forms
What is potential energy?
Stored Energy in an object
The way an object feels—rough or smooth—is called its ______.
Texture
This renewable energy comes from sunlight.
Solar Energy
Melting ice, tearing paper, and boiling water are all examples of this type of change.
Physical Change
A moving car and a flying bird both show what kind of energy?
Kinetic Energy
The ability to resist scratching is called ______.
Hardness
This renewable energy comes from sunlight.
Hydropower Energy
When a material changes shape or size but stays the same substance.
Physical Change
Give 2 examples of things with electrical energy.
Answers may vary.
What is elasticity?
The ability of an object to return to its original shape after being stretched.
Name one example of Renewable and Non-renewable Energy.
Anwers may vary.
Give clues on how to know if there is Chemical Change.
New Color, New Smell, Gas or Bubbles Form, Hard or impossible to go back to original form
What is Light Energy?
This type of energy lets us see things because it bounces off objects and enters our eyes.
This property tells whether a material can burn when placed near fire.
Combustibility
This invisible gas, mostly methane, is used for cooking and heating.
Natural Gas
Give one example of Physical and Chemical Change.
Answers may vary.
A student dropped a ball from two different heights. The one dropped from the higher point moved faster. Explain why.
Because it had more potential energy that changed into more kinetic energy.
What determines an object's color?
The only color it reflects.
How do we harness energy from coal?
Coal is mined from the ground then it is burned in a power plant.
Answers may vary