Scientific Investigations
Matter
Matter Part 2
Energy
Energy Transformation
100
What is an independent variable?
The variable that is change or manipulated.
100
Matter is...
Anything that has weight/mass and takes up space
100
What are the three phases of matter?
Solid, Liquid, Gas
100
What is energy?
Something that does work or causes change.
100
What does electrical energy transform into when you turn on a lamp?
Radiant/light energy and thermal energy
200
What is a constant in an experiment?
A part of an experiment that always stays to same.
200
What two phases of matter take the shape of the container they are put in?
Gas & liquid
200
Which one is considered a solution?
A. Trail mix
B. Kool Aid
C. A handful of coins
D. Your pencil pouch
B. Kool Aid
200
When a player throws a baseball, __________ (kinetic/potential) energy is turned into _________ (kinetic/potential) energy.
Potential energy is turned into kinetic energy.
200
A toaster turns _______ energy into _______ energy.
electrical, thermal
300
If a dog weighs two pounds and is 30 inches tall, what type of data is this?
Quantitative
300
What phase of matter is this and how do you know?
It is a gas because the atoms are spread far apart from each other.
300
Why is salt water a solution?
The salt is fully dissolved in the water.
300
True or False - energy can be created or destroyed.
False!
300
Solar panels turn _________ energy into ________ energy.
Radiant/light, electrical
400
Johnny is doing an experiment to measure plant growth based on the amount of sunlight it receives. He puts one plant in direct sun outside, one in a closet, and one in his room. He waters each plant with 30mL of water each day and gives them the same amount of fertilizer. Johnny measures the plant growth every three days using a centimeter ruler. What is the dependent variable?
The plant growth.
400
If a student dissolves sugar into water, what are two ways they could describe it?
A. a solution
B. a solid
C. a mixture
D. a substance
E. a gas
A and C
400
If you increase the temperature, an ice cube starts as a ______, then turns into a ______, then ends as a _______.
Solid, liquid, gas
400
A wind turbine and a can opener are examples of what energy?
Mechanical energy
400
What energy transformation happens when a wind turbine spins?
Mechanical energy turns into electrical energy
500
Sarah wants to see how far a car will go after changing the type of material it rolls over. She uses fleece, aluminum foil, and a piece of cotton ribbon. She keeps the height of the ramp, the car, and her amount of force to push the car the same. Sarah uses a meter stick to measure how far the car goes. What is the independent variable?
The type of material.
500
What happens to an ice cube if you increase the temperature?
It will melt into water and then turn into a gas.
500
What are atoms?
Tiny particles that make up all phases of matter
500
Radiant energy is what type of energy?
Light
500
When you use your computer, electrical energy can turn into what other types of energy?
Radiant, thermal, sound