Mystery 1
There were actually a group of real life people who acted like wizards and witches; they were called _________________________ and believed that actual potions were possible.
Alchemists
What happened to the weight of the penny after it was removed from the vinegar salt solution?
It was less than it was before
________________ were a group of people in ancient times who mixed different substances to create a reaction.
Alchemists
What is a chemical reaction?
When 2 substances react
True/False: Explosions are always dangerous
False
_____________ is one of the most valuable material in the world
Gold
Why does the weight change for the penny in the vinegar/salt solution?
The rust breaks apart and falls off the penny. The rust pieces have weight to them.
Given enough time, vinegar ________________ metal
dissolves
What do we use powders that cause different colored flames for?
Fireworks
True/False: Explosions are always used to destroy things
False
Why did we dip only half the penny in the solution during Mystery 1?
To see the change in color
What happened when we put a screw/nail in the vinegar/salt solution with the penny.
sour
If you mix acid with the sap of a South American tree (latex) you get ___________________
rubber
Explosions are caused when ____ is produced
gas
Tell us all you can about alchemists. Who they were? What did they discover?
Answers vary
He told him he could turn it to gold. Put it in an acid and made it look 'gold"
Name 4 acids - be specific
Answers will vary
What do fireworks, rubber and Silly Putty have in common?
they were all created by a chemical reaction - also accidents
Explain what happened when we put baking soda and vinegar in a bag? Why did this happen.
The 2 substances reacted. Gas was produced and the bag expanded.
How much is an ounce of gold worth?
More than a $1,000 an ounce
Safety is really important when working with acids. Acids can ______________, ______________________, and ____________ skin!
dissolve, change color and burn skin
Name 4 things for each category that we have because of: rubber, glass, metal & plastic
Must have 4 examples for each