States of Matter
What are the three states of matter?
Solid, liquid, and gas
Is trail mix an example of a mixture or a solution?
Mixture
Is boiling a physical or chemical change?
Physical
If 10 grams of water are added to 5 grams of sugar, how much sugar water will be made?
15 grams
_______ is any substance that has mass and takes up space.
Matter
When a liquid turns into a gas, do the atoms speed up or slow down?
The atoms speed up and become more spread out.
I want to make salt water.
I pour SALT into WATER to make SALT WATER.
Which substance is the solution?
Salt water
Is rusting a physical or chemical change?
Chemical
Mitchell had 20 grams of chocolate chips in a bag. How much does the chocolate weigh after it melted in the sun?
20 grams
What is an atom?
The basic building block of matter
If an ice cube is melted, does the water weigh more, less, or the same as before it was melted?
It weighs the same
I want to make salt water.
I pour SALT into WATER to make SALT WATER.
Which substance is the solute?
Salt
Give an example of a substance that has the properties of both a solid AND a liquid.
Non-Newtonian Fluid
(oobleck)
When salt is mined, machines scrape the mine walls and change salt rocks into very thin salt crystals.
What is the weight of 1 kilogram of salt rocks after the rocks change into very thin salt crystals?
1 kilogram
Describe the term volume.
The amount of space an object takes up.
What two states of matter have definite volumes?
Liquid and solid
I want to make salt water.
I pour SALT into WATER to make SALT WATER.
Which substance is the solvent?
Water
Does the process of evaporation result in a solid, liquid, or gas?
Gas
Two liquids are poured together, and a solid substance forms with no liquid remaining. Liquid 1 has a mass of 200 grams, and liquid 2 has a mass of 100 grams. What would be the total mass of the solid substance formed?
300 grams
If an object is denser than water, will it sink or float if placed in water?
Sink
Describe the atoms in a solid.
The atoms are are very close together and are vibrating.
If a mixture is heterogeneous, then a _______ is homogeneous.
Solution
Explain why roasting a marshmallow can have both a physical and chemical change.
If the heat melts the marshmallow, it is a physical change because if it's cooled, it's still marshmallow.
If the heat burns the marshmallow, it is a chemical change because the burnt part cannot be turned back into marshmallow.
Students made lemonade using the following recipe:
100 grams of lemon juice
100 grams of sugar
1,000 grams of water
The students combined the lemon juice, sugar, and water in a container. They stirred the lemonade until all the sugar dissolved. They poured the lemonade into a plastic tray and put the tray in a freezer. The next day, the students removed the tray from the freezer and observed that the lemonade was a solid.
What is the mass of the solid lemonade?
1,200 grams
If I say that the amount of matter in a marble is equal to 5 grams, what am I describing?
The mass of the marble