Matter
Waters, and Acids
Biology
Science and natural world
Random
100

matter is

What is anything that has mass and takes up space

100

75% of the earth is made of _____

Water

100

What is the basic unit of life

Cells

100

what is a hypothesis 

possible answer that can tested

100

Evolution 

Changes over time

200

an element is

What is all the same type of atom

200

All states of water

Gas, liquid, solid

200

What is symbiosis 

close relationships between species where at least one speices benefits

200
effected by other factors

dependent variable

200

Cell theory

All living things are made of cells

300

chemical substances are

what is have a definite makeup

300

What ph is neutral 

7

300

What is an organ

Structures made up from multiple tissue

300

The constant

something you keep the same

300

Organism

Individual with more than one organ system
400
Which greek philosopher studied matter? 

Democritus

400

What does the scale go to on the PH table

14

400

Number of same species living in an area

Population

400

Scientific theory 

broad explanations that are well supported by data can change over time

400

DNA stands for

deoxyribonucleic acid

500

What is a compound

2+ elements together

500

If something has a higher PH number what does it mean

it has more hydronium ions

500

what is a Biome

similar ecosystems with similar environments 

500

Whats the second law of gravity 

What is a net force on an object is responsible for its acceleration

500
Why did the chicken cross the road

he wanted to get to the other side