Matter
Particles
Mixtures
Mass
Physical/Chemical Changes
100
What is matter?
A material that has mass(weight) and takes up space.
100
What do the particles in a solid look like?
They are packed tightly together and cannot move.
100
What is a mixture?
A substance made by mixing together other substances.
100
What is Mass?
Mass is how much an object weighs.
100
Name 3 characteristics of a physical change
●Changes shape or size
●Can dissolve
●Can change states solid, liquid, gas.
●The change is sometimes reversible!
200
List three ways matter can be described.
Color, shape, texture, size, magnetic.
200
True or false: The particles in liquids are close, but not packed together. They can move.
True
200
What is a solution?
A solution is when a mixture is blended into a liquid and cannot be seen.
200
True or false: When a mixture is created, each ingredient must be weighed and added together.
True: If you are creating a mixture, you must weigh each item. Then you must add those weights together.
200
Name 3 characteristics of a chemical change.
●It burns
●Changes color
●A smell forms
●It bubbles
●A substance is transformed into a new substance and looks different from its original state.
300
True or false: Matter can be described by soft an object is?
True: Soft is a way to describe the texture of something.
300
Describe how gas particles are formed and how they move.
Gas particles are spread apart and move quickly.
300
This homemade lemonade is an example of a solution or a mixture?
Mixture: All the ingredients have been blended and mixed together until the sugar cannot be seen.
300
Figure out the Mass:
cocoa powder- 50 grams. Water 100 grams
How much would the hot cocoa weigh?
Show your equation.
50+100=150 grams.
300
True or false: Paper cut into smaller pieces is an example of a chemical change. Explain your reasoning.
False: This would be a physical change because the paper did not change into a new substance. It became smaller pieces of the same paper.
400
What are the three states of matter?
Solid, liquid, gas
400
What type of matter do these particles show? Solid, liquid or gas? How do you know?
Solid. The particles are close together and cannot move.
400
True or false: All mixtures can be taken apart or seperated?
False: Some mixtures can be separated but not all. Depending on what the mixture is made of. If there is a liquid in the mixture then it becomes harder to separate.
400
Figure out the mass:
Containers (2)- 5 grams. lemonade powder- 50 grams water-50 grams.
Show your equation.
50+50=100
100-10(container weight)=90.
400
Explain why A cake baked is a good example of a chemical change.
The cake starts as different ingredients and is turned into a new substance. The cake also creates a new smell.
500
How can water go through all three states of matter?
Water can start as a liquid. Then if it freezes it can turn into a solid(ice) then if it melts and gets hot enough, the water can Evaporate and turn into gas.
500
What type of matter do these particles show?
Liquid.
500
Give an example of a solution.
Answers may vary.
500
Find the mass.
Timmy is trying to make chocolate milk. He takes out a glass that weighs 20 grams. He adds 70 grams of milk and 30 grams of chocolate milk powder. What is the mass of his mixture? Show your work.
70+30=100
500
Come up with an example of a physical change and a chemical change that are not in our review packets.
Answers may vary.