lesson 1
what is mass
amount of matter an object
what happens when water condensates?
it changes from a gas to a liquid
physical change
kind of matter that stays the same
what does it mean to dissolve
to mix one substance into another completely
to make a solution, you completely mix or____
Dissolve
what tool do you use to measure a rock?
what is an example of a liquid
water
mixture
two or more substances that are combined without changing any of them
what type of change forms a new kind of matter?
chemical
what is it called when new forms of matter form?
chemical change
at what degree Celsius does water freeze
what happens when a gas changes back to a liquid
what is condensation
solution
a mixture in which all the substance's are evenly mixed
what is lemonade an example of?
a solution
what is an object that takes up an amount of space
volume
what happens to the puddle when the sun shines on it?
it evaporates
what happens when solid water or ice changes into liquid water?
melting happens when solid water changes into liquid
freezing happens when liuquid water changes into solid water
matter
anything that takes up space
chemical
measurement of how hot or cold something is
what is temperature
how do you find the mass of rocks?
you measure it on the pan balance and you make sure you do the same thing to both size
ice is water at this state
what is solid
physical property
a characteristic of matter that you can observe or measure directly
what is an example of a physical change?
what is a matter that does not take up a definite amount of space?
what is gas