What material did we make that can stretch and squish?
Slime
What grew on our pipe cleaners?
Crystals
What two ingredients made our bag fizz?
Baking soda and vinega
What happened when we mixed oil and water?
They separated
What did our experiment make a lot of?
Foam
Is slime a solid, liquid, or something in between?
Something in between
What powder did I mix with water to make crystals?
Borax
What did we see forming inside the bag?
Bubbles/gas
Which liquid stayed on top: oil or water?
Oil
What ingredient helped create the foam?
Hydrogen Perioxide H2O2
What ingredient helps slime change from runny glue into slime
Activator
What happens as the water evaporates?
Crystals can form/grow
What gas is produced in the reaction?
Carbon dioxide
What made the colored bubbles move through the lamp?
Gas bubbles from the reaction
What gas is released when hydrogen peroxide breaks down?
O2
Why can slime stretch without breaking right away?
It has long molecules called polymers
What shape can crystals have?
Many different shapes
What happens when the gas has nowhere to go?
It pushes outward and inflates the bag
Why don't oil and water mix?
Different densities
Why does the foam come out so quickly?
Oxygen gas gets trapped in bubbles
If you add too much activator, will slime usually become softer or firmer?
Firmer
Why did we need to wait for our crystals to form?
Crystal growth takes time as the solution changes/evaporates
How do we know a chemical reaction happened?
We saw gas/bubbles form and new substances were produced
What happened when we added the fizzy tablet?
It produced gas that carried colored water upward
Is the reaction simply mixing ingredients, or is a chemical change happening?
A chemical change