Ways to measure
What is the vocabulary word for the amount of matter an object has?
What is mass?
What is matter that has definite shape and definite volume?
What is a solid?
What is the change when you change the size, shape or state of matter from a solid to a liquid?
What is physical?
What is the change from a liquid to a solid called?
An example is water changing to an ice cube.
Freezing, Melting, Condensation, or Evaporation
What is freezing?
What degrees is the melting point? When it takes solid ice on the ground and the salt will start to work on it.
0 or 100 degrees?
0 degrees Celsius or 32 degrees Fahrenheit
What do we use to measure mass?
What is a pan balance? Must say both words to get credit.
What is matter with no definite shape but does have a definite volume?
What is a liquid?
What is the change when you change the particles inside the object and create a new substance?
What is chemical change?
What is the change from a gas to a liquid called?
An example is water vapor changed to water when it rains from the clouds.
Freezing, Melting, Evaporation, or Condensation
What is condensation?
What degrees is the boiling point for a liquid to turn into a gas?
0 or 100 degrees?
100 degrees Celsius or 212 degrees Fahrenheit
What is the vocabulary word for the amount of space the object has?
What is the volume?
What is matter with no definite shape and no definite volume?
What is gas?
Is this a chemical or physical change? Why?
Burning wood
What is a chemical change because you change the wood to a new substance called ashes?
What is the change from a liquid straight to a gas?
An example is water from a pond going up as water vapor.
Freezing, Melting, Evaporation, or Condensation
What is evaporation?
True or False
A wet sponge has the same mass as a sponge that has been wrung out already over the sink.
What is False? The water in the sponge has mass.
How do you measure the volume of a box or rectangular prism? What do you have to multiply together?
What is the length times the width times the height of the box?
What is the law called for when the mass before is the same as the mass after when measuring it?
What is the Law of Conservation of Mass?
Is this a chemical or physical change? Why?
Breaking a pencil
What is a physical change because the particles are still the same and you are changing the size by breaking the pencil?
What is the change from a solid to a liquid?
An example is a solid Hershey's candy bar being melted to become chocolate syrup.
Freezing, Melting, Evaporation, or Condensation
What is Melting?
True or False
The particles in a solid are tightly packed together.
What is true? The make up of a solid does have particles together because this makes up its shape.
How do you find the volume of an object you stick into a graduated cylinder?
1. What is measure the volume of the water before?
2. What is measure the volume of the water after with the object?
3. What is subtract the two measurements?
Why is mixing salt and water not a chemical change?
What is when you mix the two together, you can eventually seperate the two items, salt and water, by heating it up and it does not form a new substance.
Is this a chemical or physical change? Why?
Making a birthday cake
What is a chemical change because the items you add to the cake like butter, flour, eggs have to change into a new substance like dough that can be heated? A new substance is created by adding all these ingredients.
Is this a physical or chemical change? Why?
I left a bowl of ice cream sit out on the countertop at home and it melted 2 hours later when I came home.
What is a physical change? The ice cream changed a state of a solid to a state of a liquid. Also, the size ans shape of the block of ice cream changed.
What phase change is occurring when you boil a pan of water on the stove?
A. Solid to Liquid
B. Liquid to Gas
C. Solid to Gas
What is B. Liquid to Gas.