What's Your Evidence?
Fireworks make this.
What is heat? What is light?
What any element is made of...
What is atoms?
Without me, your breath would mean nothing.
What is oxygen?
Ripping paper into little pieces.
What is a physical change?
If a piece of cork has a density of less than one, it will do this.
What is FLOAT?
Bubbles indicate this.
What is a gas?
This is moving around the outside edge of the atom.
What is an electron? What are electrons?
I'm lighter than air.
You find me with the Noble Gases.
What is Helium?
A temperature change occurs between baking soda and vinegar so it indicates this happened.
What is a chemical change?
The cube has a mass of 20 and its volume is 10 cm3 so its DENSITY is this amount.
What is 2 g/cm3?
A rainbow never changes these...so it is a physical change.
What are colors?
This sub particle gives an atom its identity.
What is the proton?
I am the new substance formed when water & oxygen touch outside of iron.
What is rust?
Freezing orange juice
What is a physical change?
This is the reason for any object to sink in water.
What is "it has a larger density"?
What is "it's more dense than water."?
What is a precipitate?
This weighs the same amount as a proton.
What is a neutron?
You exhale these TWO elements while they are joined together.
What are carbon & oxygen?
All chemical changes make this.
What is a new substance?
The atoms are closer together in this state than any other.
What is "in a solid"?
What is "solid"?
This changes as you bake a cake in the oven when your batter becomes...different.
A property change
Subtract this from the atomic mass to find the correct number of neutrons.
What is the atomic mass? What is the number of protons?
I am one of the most reactive metals. You can find me in bananas...and group 1.
What is Potassium?
What is a physical change?
This non-metal is the least dense.
What is "hydrogen"?