Show:
Mass Volume Density
Acids and Bases
Gravity
Physical & Chemical changes
100
What is mass?
the amount of matter inside an object
100
Acids have a________ taste
Sour
100
What is gravity?
Gravity is the force that pulls two objects together.
100
What is a chemical change?
What is a change with a new substance formed.
200
If an item is more dense than water it...
Sinks
200
Bases have a________ taste
Bitter
200
What can change if you travel from planet to planet?
Your weight
200
What is a physical change?
What is a change in the size and shape with no new substance formed.
300
If and item floats it is...
less dense than water
300
Acids have a pH of _______
less than 7
300
What are two things that effects gravity?
Distance and mass.
300
List all of the indicators that a chemical change has occurred.
What is color change, temperature change, formation of a gas, formation of a solid, formation of a liquid
400
Volume is...
the amount of space an object takes up
400
Bases have a pH of __________
greater than 7
400
What causes Earth tides?
The moon
500
Mass divided by volume equals
Density
500
On the pH scale 7 is considered_________
neutral
500
How many hours pass between one high tide and the next high tide in most places?
12 and a half.