Put you in a tank and see how much water you displace.
How do you find the volume of your body?
200
Because oil is less dense than water.
What does oil float on water?
200
He discovered electrons and came up with the 'plum pudding" model of the atom.
Who is Thompson?
200
When a liquid changes to a gas.
What is evaporation?
300
This particle has a negative charge
What is an electron
300
The molecules inside a balloon move faster.
Why does a balloon expand or pop when heated up?
300
Air is more dense than land.
Why does the atmosphere float above the land?
300
He said atoms were mostly empty space with a dense nucleus.
Who is Rutherford?
300
When a gas changes to a liquid.
What is condensation?
400
This particle has no charge
What is neutron
400
Put the rock in a graduated cylinder to displace the water.
How do you find the volume of a rock?
400
Find the mass of the rock on a triple beam balance and then put the rock in a graduated cylinder with water to find its volume. Then divide the mass by the volume.
How do you find the density of an irregular shaped rock ?
400
Came up with the idea that electrons travel in specific energy levels around the nucleus.
Who is Bohr?
400
When a liquid changes to a solid.
What is freezing?
500
These particles are found in the nucleus of an atom
What are protons and neutrons
500
Thermal expansion
What happens when objects are heated up?
500
Fat is less dense than muscle.
Why do fat people float better than muscular people?
500
The nucleus of an atom surrounded by an electron cloud.
What is the latest version of what an atom is like?