Physical Properties
What physical property refers to the amount of matter in an object?
Mass
What are we measuring if the units we use are g, or kg?
mass
What state of matter has a fixed, rigid shape?
Solid
What is temperature really a measure of?
How fast an objects particles are moving
This is the smallest unit of matter. If it isn't made of these things, then it isn't matter.
Atoms
What physical property refers to the amount of space an object takes up?
Volume
What units would you typically use to measure the volume of a liquid?
milliliters (mL) or liters (L)
What state of matter changes to fit the container it's in?
What two things happen when matter heats up?
Particles move faster and spread out.
A collection of identical atoms is called what? (We see them on the periodic table of...)
Elements
Which three properties can you observe with just your senses?
color
shape
mass
state of matter
color, shape, and state of matter
What units do we use in science class to measure somethings temperature?
degrees Celsius
What is it called when a solid turns into a liquid due to an increase in temperature?
Melting
True of False: When an object freezes, its particles completely stop moving.
False! That is impossible.
How is a sand castle similar to our "atomic theory" model?
sand castle is made of tiny bits (sand), matter is made of tiny bits (atoms)
This physical property refers to how smooth or rough something is.
Texture
What is the difference between a measurement, and an observation?
an observation uses your senses, a measurement uses a tool and gives you a number.
Which state of matter has the fastest moving particles?
gas
What would happen to an inflated balloon if you put it in a freezer for an hour?
It would look like it had lost some air. (but really it didn't!)
What is a compound?
when two or more different atoms bond together to make a new substance
What does it mean if a substance is "soluble"?
It will dissolve in water
Why is the metric system (grams, liters, meters) better than the American system (inches, pounds, gallons)?
Because the metric system uses a base 10 system!
Why does evaporation take so much longer than boiling?
Only the particles on top, that are exposed to the air, can evaporate.
If the Celsius and Fahrenheit temperature scales were stare cases, which one would have "bigger" steps?
Celsius
If I bond hydrogen (a gas) and oxygen (a gas) together, will I always get a new substance that is also a gas?
no, the new substance has its own physical and chemical properties.