Vocabulary
Matter
Let's Mix!
Let's Separate!
Pot Luck
100
What is a mixture?
two or more substances put together that can be physically separated
100
The volume of the rock is?
10 ml
100
20 g of water, 12 g of gravel, and 3 g of salt are combined. How much does the mixture weigh?
35 g
100
What tool can you use to pull out iron nails in a container of sand?
a large magnet
100
True or False: on average, particles of a gas with a high mass will move slower than a gas with a low mass at the same temp
True
200
Change state from gas to liquid?
condensation
200
When the particles of a substance heat up this is what occurs between the particles.
the space between the particles increases
200
A mixture is made of 50 mL of water, 10 g of gravel, and 4 g of salt. The salt disappears. What is the mass of the mixture now?
14 g
200
What tool can you use to separate dirt from a wet mixture?
filter paper
200
The mightiest Avenger?
Thor
300
State change from solid to a gas
sublimation
300
What is the density if volume of 350 g water is 35 mL?
10 g
300
A solution is made of 10 g of water and 4 g of salt. The water evaporates. What is the weight of the remaining salt?
4 g
300
process of separating out parts of chemical mixtures (usually colors) dissolving them onto an absorbent material (usually paper)
chromatography
300
The amount of heat energy in an object is measured with?
thermometer
400
What combination has the same appearance and composition throughout?
Homogenous mixture
400
If the density of a 1.0 mL container of water is 77.5 g/mL, what is its volume?
77.5 mL
400
A mixture is heated so that one substance evaporates. The vapor is collected and condenses into a liquid.
distillation
400
If you have a mixture of dirt and sugar, how can you separate the dirt? (Hint: this takes two steps)
1) pour water into the mixture and stir 2) pour the mixture through filter paper
400
12%
500
What happens when a liquid evaporates?
the liquid changes into a gas
500
ball 1 and 3 are less dense than ball 2
500
In area B, describe what is happening in the heating curve?
melting or freezing
500
Human body cells contain how many chromosomes?
46
500
Separate this mixture with the fewest steps possible. Explain which tools you will use and what material the tool will separate.
mixture: soil, paper clips, and salt
1) use a magnet to separate the paper clips
2) pour water into the mixture and stir
3) pour the mixture through filter paper to separate the soil and salt water
4) evaporate the water