Phases of Matter
What is melting?
What is the process of changing from a solid to a liquid?
What unit of measurement is used to measure mass?
What are grams?
This type of change is a change in size, shape or state of matter. This change does not change the particle make up of the matter.
What is a physical change?
This property of matter describes the amount of matter in an object.
What is mass?
Bonus: Extra 50 points.
Describe the only way the mass of an object can change.
What is a mixture?
What is a combination of two or more substances that can be separated?
What is the process of changing from a liquid to a gas?
What is evaporation?
What tool can be used to measure mass?
What is a chemical change (give the definition, not an example)?
What is a change that makes a completely new kind of matter?
This force pulls down on objects. An object's weight is dependent on this force.
What is gravity?
Compare the properties of each substance in a mixture before and after they are combined.
The properties of each substance are the same before and after they are combined.
What needs to applied to matter to change it from a solid to a liquid and a liquid to a gas?
What is heat?
What is the formula (equation) used to determine the volume of a rectangular shaped object?
Give an example of a physical change.
What is...
- cutting an apple
- freezing some water
- breaking a pencil
- crumpling a piece of paper
What is volume?
What is the amount of space that matter takes up?
What is..
- a salad
- trail mix
- salt water
The particles in this phase of matter have very little energy and barely move.
What is a solid?
Describe how you would find the volume of a rock.
What is...
1- pour a liquid into a graduated cylinder
2- measure the volume of the liquid
3- place the object into the liquid
4- measure the volume of the liquid + the object
5- subtract the volume of the liquid from the volume of the liquid + the object
Give an example of a chemical change.
What is...
- digesting food
- lighting a match
- rusting of a nail
This property of matter compares an object's mass to it's volume (describes the amount of matter in an object in relation to it's volume).
What is density?
Compare the properties of each substance in a mixture before and after they are combined.
The properties of each substance are the same before and after they are combined.
This phase of matter takes the shape of whatever container it is in.
What is a gas?
Name two tools used to measure the volume of a liquid.
What is a graduated cylinder?
What is a beaker?
Imagine you have 2 tomatoes, a cup of lettuce and 1/2 an onion. You cut up all of these vegetables and make a salad with them.
Compare the mass of the vegetables before you make the salad and mass of the vegetables after you make the salad.
What is "they are the same"?
Bonus: Extra 50 points.
What rule / law proves this to be true?
Which phase of matter is more dense - solids or liquids? Explain why.
Solids are more dense because there are more particles packed into the matter. This means there is more matter in a given volume.
What is a solution? Give a definition and an example.
What is a mixture in which one or more substances are dissolved into another substance?
What is salt water?