Show:
It Matters!
Let's Get Physical
Crazy Chemical Changes!
Vocabulary
All Mixed Up!
100
This is the smallest form of matter.
What is an atom?
100
A change that is made in which a new substance is NOT created.
What is a physical change?
100
A change in which one or more substances are combined to create a new substance.
What is a chemical change?
100
The ability to ignite, or catch fire...
What is flammability?
100
Describe the atoms in a solid.
What are compact/ close together?
200
Everything is made up of this/ is this.
What is matter?
200
Color, hardness, and texture are examples of this.
What are physical properties?
200
One of these is an example of a chemical change: a) clipping your finger nails b) dyeing an easter egg c) tearing your math worksheet out of your workbook d) putting ketchup on a hotdog
What is answer B?
200
The original substance(s) in a chemical change...
What is the reactant?
200
A plant going through the process of photosynthesis is an example of this kind of change.
What is a chemical change?
300
This means to take up space.
What is volume?
300
The temperature at which a liquid changes to a gas.
What is boiling point?
300
While working in the science lab, Mandy noticed her experiment undergoing a change. The experiment smelled like rotten eggs, it turned into a weird purple color, and it started smoking. How does she know this is a chemical change? What evidences are there? (3)
What are odor, color change, and gas appearing.
300
A reaction that generates heat...
What is exothermic?
300
Describe the atoms in a liquid.
What are fluid? They are spaced closer together than a gas, and farther apart than a solid.
400
This means to flow (this is like the atoms in a liquid).
What is fluid?
400
The temperature at which liquid changes to a solid.
What is freezing point?
400
Chemical reactions occur at this level.
What is the molecular level?
400
The new substance in a chemical change..
What is the product?
400
Describe the atoms in a gas.
What are far apart and fast moving?
500
Solids, Liquids, and Gasses are examples of these.
What are States of Matter?
500
Physical properties can be observed using these.
What are the five senses?
500
These are the five evidences of a chemical change.
What are color change, gas/bubbles appearing, heat or light is created, cannot be undone, and an odor is created.
500
Molecular means...
What is dealing with molecules?
500
Sharpening a pencil, even though it creates pencil shavings, is an example of which kind of change?
What is a physical change?