A
What is matter?
Anything that has mass and takes up space.
What are the three states of matter?
solid, liquid, and gas
grams (g)
Change in state (solid to a liquid) would be an example of a ________ change.
Physical
On another planet your _______ could be different than on earth.
weight
A substance made of two or more elements that are chemically combined in a set ratio is a _________.
compound
The basic particle from which all elements are made.
atom
A change in which energy is absorbed.
Endothermic Change
A change in which energy is released.
Exothermic change
Will an object with a density of 0.78 g/cm3 float or sink when put in water?
float
Made of two or more substances that are together in the same place, but their atoms are not chemically bonded.
Mixture
What is the unit when finding volume of a liquid?
Milileters (mL)
What is the unit when finding density?
Grams per cubic centimeter (g/cm3)
The total energy of the motion of all of the particles in an object.
Thermal energy
length x width x height
A mixture that is so evenly mixed that you can't see the different parts.
Homogeneous Mixture
What is the formula for density?
mass / volume
A method to separate mixtures by pouring the mixture through a filter.
filtration
Which rider on the triple beam balance should you always move first?
the 100s
What is the difference between a physical change and a chemical change.
In a physical change, the appearance may look different but it is still the same substance. In a chemical change new substances may form.
Give 3 examples of a heterogeneous mixture.
Trail mix, soup, salad, ketchup, cereal, sand, etc.
How would you find the volume of an irregular object?
Submerge the object in a graduated cylinder and find the difference.
What is the Density of an object that has a mass of 10 grams and a volume of 20 cm3.
0.5 g/cm3
Give 3 examples of a physical change
change in state, change in shape or form, dissolving, bending, breaking, crushing, chopping, filtration, etc.
Give 2 examples of a chemical change.
combustion, electrolysis, oxidation, tarnishing, rusting