Show:
Vocabulary
Measuring Matter
Physical Changes
Chemical Changes
More Vocabulary
100
A tool that allows you to measure mass.
What is a balance?
100
The true amount of matter in an object?
What is mass?
100
Give one example of a physical change.
Possible answers: cutting an orange, melting an ice cube, freezing water, cutting paper, etc.
100
Give an example of a chemical change.
Possible answers: glow sticks, burning wood, rust, baking bread, ripening tomatoes, etc.
100
The measure of the Earth's gravitational pull on an object.
What is weight?
200
The amount of space an object takes up.
What is volume?
200
The simplest type of pure substance.
What is an element?
200
List three ways to have physical changes.
Possible Answer: What is cutting, breaking, melting, freezing, and mixing?
200
Why is adding vinegar to baking soda a chemical reaction? Explain.
What is the reaction produces carbon dioxide and water and the reaction produces fizzing.
200
A mixture in which one substance is dissolved into another.
What is a solution?
300
A change of one type of matter into another type of matter with different properties.
What is a chemical change?
300
A graduated cylinder contains 22 mL of water. When a rock is dropped in the water, the liquid reads 45 mL. What is the volume of the rock?
What is 23 mL?
300
Is melting chocolate a physical change? Why or why not?
What is yes because melting chocolate is a physical change because it only changes state and remains chocolate?
300
True or false: A chemical change occurs when liquid water is changed to hydrogen and oxygen gases. Please explain your answer
It is TRUE because water is a different type of matter than hydrogen and oxygen gases.
300
The substance that is dissolved in a solution.
What is a solute?
400
A change in some properties of matter without forming a different kind of matter.
What is a physical change?
400
The measurement of how much mass is contained in a given volume of an object. The units are grams per cubic cm.
What is density of an object?
400
Is shaping a ball of bread dough into a loaf an example of a physical change? Why or why not?
What is yes because you are changing the shape of the dough, but the matter remains the same.
400
Is cooking an egg an example of a chemical change? Explain.
Yes, the matter changed into a new substance and the egg won't ever be raw again.
400
The substance that does the dissolving in a solution.
What is the solvent?
500
The smallest particle of an element that has all of the properties of that element.
What is an atom?
500
The difference between weight and mass.
What is weight is the measure of the force of gravity on an object, and mass is the amount of matter in an object?
500
Temperatures where materials change from one state of matter into other states of matter.
What are boiling point, freezing point, and melting point?
500
The type of property that describes how a substance changes into a new substance.
What is a chemical property?
500
The amount of solute that can be dissolved in a specific volume of solvent under certain conditions.
What is solubility?