Show:
Changes
Elements
Periodic table
Density/Volume
Miscellaneous
100
Boiling water
What is an example of physical change?
100
pure substance that cannot be broken down further
What is element?
100
all elements in a _______ have similar properties
What is a group?
100
amount of matter in an object
What is mass?
100
using your senses to make ______________
What is observations?
200
Tarnised pennies
What is an example of a chemical change?
200
counting the amount of capital letters in the formula
What is types of elements present?
200
breaks the table up between metals and non metals
What is zig-zag line?
200
Oil sits on top of water when placed in a container because oil is
What is less dense?
200
a good hypothesis must be ____________
What is testable?
300
produces new substances, different from the original
What is chemical change?
300
NaCl is an example
What is a compound?
300
This level decreases when moving from left to right on the periodic table
What is reactivity?
300
the formula to calculate density
What is mass divided by the volume?
300
one factor changes, and everything else stays the same
What is controlled experiment?
400
dissolving sugar in tea
What is physical change?
400
the small subscript number below the line next to the element is the amount of what present
What is atoms?
400
the only metal that is aliquid at room temperature and used in thermometers
What is Mercury?
400
define volume
What is amount of space taken up by an object?
400
the measure of the pull of gravity
What is weight?
500
changing the state of matter, example liquid to gas
What is physical changes?
500
the name of the number that give the amount of protons present
What is atomic number?
500
Elements that are almost completely unreactive with other elements
What is Noble Gases
500
placing a rock in a graduated cylinder and then ____________ the original volume from the new volume is used to calculate the volume of the rock
What is volume?
500
two or more substances mixed together WITHOUT changing the nature of the substances
What is mixture?