Everything that has mass and takes up space
What is matter?
Pancake syrup is in what state?
What is liquid?
Ice cubes changing into water is...?

physical change
A student records a material's behavior when it is heated and when it is cooled. What is the student investigating?
A. How the material changes another material's weight
B. How the material's weight determines its color
C. How mixing creates a new substance
D. How temperature changes affect the material
D
Crushing a can is an example of ______ change.

What is physical change?
A material that allows thermal energy to transfer quickly.
What is conductor?
An ice cube is in what state of matter?
What is a solid?
A change that results in the creation of something new and can't be reversed.
What is a new substance/chemical change?
A student wants to find out if the weight changes when sugar dissolves in water.
What is the best way to carry out the investigation?
A. Weigh the cup of water, then stir in sugar and weigh the cup again.
B. Taste the water before and after to see if it is sweeter.
C. Count the number of sugar crystals that disappear.
D. Measure the temperature of the water before and after.
A
An object weighs 250 g before an interaction and 270 g afterward. What can you conclude from the measurements?
Something was added to the object
Definite shape and size
What is solid?
When heat is added to butter, it changes from _______________.
What is solid to a liquid?
The process of changing from a gas to a liquid is called?

What is a physical change?
Students mix Substance A and Substance B. They investigate the mixture before and after mixing and conclude that a new substance formed. This conclusion is scientifically stronger than simply saying, “It looks different”. What are some evidencethat a new substance has formed?
change in color
change in temperature
new solid forms (rust, ash)
odor is produced
When you mix add marbles and sand into a bowl, is that a mixture or solution?
What is a mixture?
Takes on the shape of the container it is in, but not the volume
What is liquid?
Water vapor is in what state?
What is a gas?
Burning a marshmallow to make smores
What is a new substance (chemical change)?
A candle is placed on a balance and burned for 5 minutes.
Which is the best question to ask during this investigation?
A. What color is the wax when melted?
B. How bright is the candle’s light?
C. Does the candle’s weight change as it burns?
D. How fast does the candle wick disappear?
C
True or False: Burning paper is a chemical change.
True
Takes the shape and volume of the container it is in.
What is gas?
What state is an item in if the atoms are able to slide past each other, but do NOT fill up the container?

What is liquid?

An old rusty car is an example of what kind of change?
What is a chemical change/ new substance?
A material changes very little when heated, while another material changes significantly when heated. How could this information be useful?
A. It proves that the materials have the same properties
B. It could help determine which material is appropriate for a particular purpose
C. It proves that neither material can be cooled
D. It shows that heating always creates a new substance
B
Restaurants put drinks into stryofoam cups to keep drinks hot or cold because styrofoam is a great _____
What is insulator?