Download Science Starter Tuesday Week 2

Tuesday, November 8
Warm-up:
Draw and label the parts of an atom to
the best of your ability.
Democritus
400 b.c.
JJ Thompson
Niels Bohr
All things are
made up of small
pieces of
something.
ATOMOS
Atoms have
electrons
(Blue berrry
muffin)
Electrons orbit
the nucleus like
planets around
the sun.
Modern Day
Model
There is an
electron cloud
around the
nucleus.
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
1. What is pure solid gold made of?
2. What is pure oxygen gas made of?
3. What is liquid mercury made of?
4. What is a water made of?
5. Which is bigger? Atom or Molecule?
Molecules and Atoms Brain Blasters
Aluminum melts and becomes a liquid at
1,221°F. It turns into a gas at 4566 °F.
1. Can IRON be a liquid?
2. How do I make liquid IRON?
3. Can IRON be a gas?
4. How do I make IRON a gas?
5. T/F. ALL atoms can be a solid, liquid or gas.
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.
Sodium is a chemical
element with symbol Na
and atomic number 11. It
is a soft, silvery-white,
highly reactive metal.
Chlorine is a chemical
element with symbol Cl
and atomic number 17. It
is a yellow, poisonous
gas.
When you combine the two chemicals, you
get table salt. NaCl
What does this tell you about what happens
when you combine two atoms to form a new
molecule?
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?
Thursday, October 27
Why can’t protons and
electrons both “live” in the
nucleus of an atom?
Look at this pile of marbles and
pretend they are atoms.
1. 1. If I wanted to make a model of 5 molecules of water,
how many total hydrogens would I need?
2. How many total oxygen would I need?
3. How would I write the formula of 5 waters?
4.
How many total atoms would I need for 10C6H12O6
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 –
Draw the models of the atom
from 400 b.c. to the model
we have today.
You are handed a container of salt, a
magnifying glass, and a microscope, and
the formula for salt is NaCl. 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?).