Red
Moving from a gas to a liquid is called _____________.
condensation
Moving from a liquid to a gas is called _________
evaporation
Anything that has mass and takes up space is called
matter
The amount of matter in an object.
mass
The amount of space an object takes up.
volume
Formula for the volume of a cube shaped item
L x W x H
(Length x Width x Height)
The smallest particle of an element
atom
A substance made up of only 1 kind of atom.
element
Objects containing the same amount of matter can take up different amounts of space.
True or False
True
To find the density of an object, you need to find the object's ____________ and _____________.
mass
volume
In order for an object to sink in water, the object's density has to be ___________________
More than 1
Physical or Chemical Change?
burning wood
Chemical
What are 2 chemical changes that occur when wood is burned?
heat, gas, light, odor, sound
(Only have to name 2)
Physical or Chemical change?
ripping or cutting paper
Physical
What kind of charge does a neutron have?
no charge or neutral charge
What kind of charge does a proton have and where is it located?
positive charge and located in nucleus
Need to have both correct answers to get points.
A substance made up of two or more atoms of 2 or more elements joined by chemical bonds.
compound
Element, mixture or compound? H2O
compound
Element, mixture, or compound? pizza
mixture
The combination of two or more substances not chemically combined
mixture
When you go to the moon, what remains the same?
your weight or your mass
your mass
What kind of mixture is salt water?
homogenous or heterogenous
homogenous
What kind of charge does an electron have and what are valence electrons?
negative charge and valence electrons are found in the outer most shell/orbit/circle of the atom
Must have both answers correct to get points.
Bleach has a pH of 13.5. Is it an acid, base, or neutral?
base
Which is not a chemical property?
rusting, flammability, reactivity, melting point, magnetic attraction
melting point