pH Levels
What is the pH level of water?
7
What mixture did we soak pennies in to make them shiny again?
salt and vinegar
Name 3 things that are acidic.
Answers will vary; anything with a pH less than 7 is correct
What is the pH level of lemon juice?
2
What is the name of the people long ago who studied chemicals, and tried to make gold?
alchemists
Name 3 things that are basic or alkaline.
Answers will vary; anything that has a pH over 7 is correct
If you added baking soda to butterfly pea flower tea, what color would it be?
dark blue/teal/green
Why couldn't we see the copper particles in the salt and vinegar mixture?
the copper layer dissolved
Which is more acidic: vinegar or lemon juice?
lemon juice
If you added vinegar to butterfly pea flower tea, what color would it be?
pink/purple
Name at least two properties of acids. (What do acids have in common?)
they taste sour, dissolve metal, dissolve other things, make things change color, burn/hurt
soap
What is the pH level of soda?
2.5
How can you make something steel look like copper? (Answers can be in ASL)
Soak copper in salt and vinegar, then soak steel in that mixture
Which is less acidic: vomit or chicken soup?
chicken soup