Concepts

Question 1

What is some evidence of a reaction?

Answer 1

Bubbling, fizzing, temperature change, precipitate, color change.

Question 2

Give some examples of a chemical change or reaction.

Answer 2

calcium chloride and baking soda= calcium carbonate(chalk)
vinegar, baking soda, and soap powder
a bicycle left out in the weather
a glow stick
calcium carbonate and vinegar

Question 3

How do you figure out if a liquid is a solution?

Answer 3

You can figure out if a liquid is a solution by filtering and then evaporating it. If there are crystals left at all, it was a solution.

Question 4

What are some materials we used in this investigation?

Answer 4

Calcium Chloride, Baking Soda, Vinegar, Water, Carbon Dioxide, Chalk