Chemistry!
What is an atom?
The basic building block of matter
What is an organism?
A living thing
What are 3 signs of a chemical reaction?
Bubbles (gas formation), temperature change, colour change, new scent
Acid-base reaction
Why do chemical reactions happen?
Energy
Something made from 2 or more atoms
What type of organism is yeast?
Fungi
What is happening in a chemical reaction that makes it DIFFERENT from a physical reaction?
Chemical bonds are being broken and new chemicals are being formed!
Is vinegar an acid or a base?
Acid
What type of energy do all atoms have?
Kinetic energy
If a solid turns into a gas, does it gain or lose energy?
Gain
What are 3 things the yeast needed to survive?
Right pH, energy source, water, temperature, oxygen
What did we add to make the milk curdle and what approximately was the pH of this? (You must answer both correctly to get full points)
In the elephant toothpaste reaction, a chemical reaction was already happening but something made it faster so the toothpaste exploded. What was the scientific term for what we added to make it go faster?
Catalyst
What degree is Mayu doing?
Microbiology
What is a polymer?
A long string of molecules
How do trees get water to their leaves?
Capillary action and transpiration
What is the scientific term for the type of thing oobleck is?
Non-newtonian fluid
What did we add to the bouncy balls to made the glue bouncy and how did this make it bouncy?
Borax added crosslinks
What degree is Nathan doing?
General Sciences
What is the chemical formula for the gas made in the experiments we made?
CO2
What does soap form bubbles around?
Fat molecules to made micelles
What is the chemical reaction that happens when proteins lose their structure (this happened in plastic milk)?
What is another word for the catalyst in the elephant toothpaste experiment?
Enzyme
What degree is Rachel doing?
Chemistry