Aything that takes up _______ and has _______ can be defined as matter
What is space and mass
During a physical change, the substances remain the _________
What is the same
Ice metlting
What is a physical change
Grass seed turning into grass is an example of a ___________ change
What is chemical change
How old is the earth
4.6 billion years
Matter can ______________
What is change
This type of change happens when atoms rearrange to form one or more new substances
What is a chemical change
Cracking eggs into a bowl
What is a physical change
What is photosynthesis
You would need to visit this country to see the Giant Crystal Caves.
What is Mexico
These are the four main phases of matter
What is solid, liquid, gas, and plasma
During a chemical change, there is also a change in energy, such as the production of _______ or _______
What is heat or light
Baking a cake
Chemical Change
Chemical changes allow for matter to be ___________ and ____________
What is recycled and reused
According to Bill Nye, Atoms are the __________, and molecules are the _____________
What are letters and words
This term refers to physical characteristics such as color, mass, or chemical composition.
What are properties
These three pieces of evidence suggest that there is a chemical change happening.
What is a change in colour, bubbles of gas, change in smell (formation of a new substance)
Making a stomp rocket
Chemical Change
This is one of the most powerful chemical changes that happens in nature
What is a forest fire
How many elements are on the Periodic Table
What is 118
These are referred to as the "Building Blocks" of matter
What are atoms
This is a chemical change that happens in your body (about 20 times a minute) that keeps you alive
What is respiration or cellular respiration
Combining milk and vinegar
Chemical Change (milk protein mixes with the acid; this is how you make curds and whey)
What is decomposition
These are the 3 main eras of geological time
What is Paleozoic, Mesozoic, and Cenozoic