1. Molecules and Atoms Brain Blasters
Aluminum melts and becomes a liquid at 1,221°F. It turns into a gas at 4566 °F.
Can IRON be a liquid?
How do I make liquid IRON?
Can IRON be a gas?
How do I make IRON a gas?
5. T/F. ALL atoms can be a solid, liquid or gas.

2. If we can’t see air, how do we know it exists?
If we can’t see air, how do we know it exists?
List at least 3 examples of EVIDENCE or things you could do that helps us know that air exists.

3. Write down what each of these scientists did that had to do with the model of an atom:
Democritus –
John Dalton –
JJ Thompson –
Ernest Rutherford –
Neils Bohr –
James Chadwick –
Modern Day Scientists –

4. Scientists Democritus – 1st to suggest all matter made of atoms
John Dalton – 1st in modern day to identify atoms as solid balls (Theory of the Atom)
JJ Thompson – 1st to discover electrons
Ernest Rutherford – 1st to discover protons in the nucleus
Neils Bohr – 1st to show electrons in energy fields
James Chadwick – 1st to discover neutrons in the nucleus
Modern Day Scientists – Electron Cloud Model is the one we use today. Electrons are moving like crazy in their energy field

5. Baking Soda is made of many molecules of NaHCO3 Vinegar is made of many molecules of CH3COOH and water. Make a prediction as to what happens to the molecules when I mix them together. What happens to the MOLECULES and ATOMS? What are they DOING?

6. Look at this pile of marbles and pretend they are atoms.
1. If I wanted to make a model of 5 molecules of water, how many total hydrogens would I need?
How many total oxygen would I need?
How would I write the formula of 5 waters?
How many total atoms would I need for 10C6H12O6

7. Science Starter You are handed a container of salt, a magnifying glass, and a microscope. You teacher asks you the following: “What is salt?” List all the properties of salt and explain it’s chemical composition (what is it made of?).