Energy
What is energy?
The ability to do work or cause change.
What kind of wave lets us hear music?
Sound waves.
What is a volcano?
An opening in Earth's crust where lava comes out.
Name two things that plants need to make food.
Sunlight, water, carbon dioxide.
Name one tool scientists use to measure temperature.
A thermometer
What kind of energy does the sun give us?
Light and heat energy.
What do all waves carry?
Energy
Name one way mountains are formed.
Tectonic Plate movement.
What is adaptation?
A trait that helps an organism survive.
Why do scientists repeat experiments?
To check for accuracy and reliability.
Name three ways we use electrical energy every day.
Lights, computers, TVs, etc.
What is a pitch?
How high or low a sound is
What is erosion?
When wind or water moves soil or rock.
What is evidence we can find in rock layers? What do they show/prove?
Fossils. They show changes in climate, landforms, and life over millions of years.
What is a hypothesis?
An educated guess or prediciton.
What is the Conservation Law of Energy?
Energy can never be created nor destroyed.
True or False:
Sound can travel through anything.
False
Trench's and islands.
Data
What do we call information gathered during an experiment?
Data
What happens to energy when it is used?
It changes one form to another, not destroyed.
How does the motion of a string affect the amplitude and wavelength it makes?
Faster waves = lower amplitude and smaller wavelength
Shorter waves = higher amplitude and longer wavelength
What is the Richter Scale?
It calculates an earthquake's magnitude (size).
Why do animals become extinct or endangered?
Because its habitat changes, food becomes scarce, or it can't adapt fast enough to survive.
What scientific method do we do after every experiment in order to explain the answer and data?
Claim, Evidence, and Reasoning (CER)