List 2 different ways to separate mixtures
is this a mixture or a solution?
coffee
solution
How do we separate salt from water in an salt water sample?
Evaporation
trail mix, rocks with sand, and iron filings with gravel are examples of these
mixtures
How do we separate iron filings from sand?
magnet
Physical changes in matter change the matter into different substances than what you started with.
True or false?
false
This large body of water is an example of the solution of water and salt
the ocean
How do we separate pepper from sand?
density: water
Can mixtures be solids, liquids, or gases? Or is a mixutre only solid things?
solids, liquids, and gases
give 3 examples of solutions
tea, coffee, koolaid, soda, salt water...
density is measured by comparing items to the density of water give an example of something that is more dense and less dense than water
more...
less...
This tool used in the lab is made of wire mesh and helps separate things based on size
sieve, colander, filter, screen, etc...
Can you separate salt from sugar? How?
You can't by the means we have discussed in class.
Which properties of matter measure weight and the amount of space an item requires...in order.
Mass and volume
physical properties of matter are (define and name at least 4 examples)
ways to describe an item without changing it:
size, volume, mass, color, density, solubility, magnetic, ...
What do we call the substance that causes something to dissolve in a solution?
solvent