Acids and bases
Chemical reactions
Separating mixtures and solutions
Amazing water
Mystery
100
Blue litmus paper.
What do we use to test acids?
100
Color, odor, temperature, weight and bubbles.
What are the 5 things that happen when a chemical reaction occurs?
100
Air, magnets and water.
What are some things we can use to separate and solutions?
100
The molecules hold on to each other even more tightly because there are no molecules pulling on them from the air above.
What is surface tension?
100
Example: vinegar + baking soda = carbon dioxide
What is an example of irreversible change?
200
Bitter.
What do bases taste like?
200
Adams rearrange and form new chemical bonds.
How does a chemical reaction happen? 
200
Filters are used to separate mixtures and solutions. 
What are filters used for?
200
It is attraction that occurs from particles of the same substance.
What is cohesion?
200
Glycerin is more dense than oil.
What is more dense, glycerin or oil?
300
Cabbage juice.
What other things can we use to test acids and bases?
300
Carbon dioxide.
What kind of gas forms when baking soda and vinegar mix together?
300
Example: oatmeal, berries and milk.
What are some examples of mixtures?
300
It is the attraction that occurs between different substances.
What is adhesion?
300
It is by weighing a substance to the equal volume of water.
What is density determined by?
400
Acids.
Are strong acids or strong bases dangerous?
400
Something you can't change back.
What is an irreversible change?
400
Examples: tea, water, oil...
What are some examples of solutions?
400
Because of cohesion.
Why does surface tension occur? 
400
Soluble materials dissolve in water,  insoluble material don't dissolve in water.
What do soluble and insoluble mean?
500
They both have ions.
What do acids and bases have in common?
500
The baking soda makes it rise with the heat.
How does dough turn into a solid?
500
Spaghetti and meatballs.
What are mixtures?
500
Example: water climbs up walls of a straw.
What is an example of adhesion?
500
1. Decanting 2. filtering 3. evaporation.
What are the different ways we can recouverf a solid from a liquid?
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