Solution or Mixure
Adding 3 pieces of ice to a glass of water.
Mixture: It is easy to separate.
water to ice
physical
A boiling pot of water show which states of matter?
Solid/liquid/gas
Chemical change creates a new substance, physical change is only a change in shape.
The main difference between a mixture and a solution.
mixtures can be separated easily, and all individual pieces can be seen. Solutions can not be separated easily
Trial mix
Mixture: Easy to separate
baking soda mixed with lemon juice
chemical change
Bread, Ice, bowl are examples of which state of matter
solid
You place a balloon in a freezer for an hour, what would you most likely observe?
The balloon would shrink in size.
washers= mass of 150g
bolts= mass of 300g
what is the mass of the to objects mixed together?
450 G
Fresh squeezed orange juice
Mixture: Can separate with filter paper
cooking an egg
chemical change
Substance x observations
-clear color
-filled half of the container
-definite volume
-flowed to the other side when it was turned upside down
what state is substance x
a liquid
You put a can of soda in the freezer for 24 hours, explain what you would observation when you took out the can.
The liquid in the can would have froze and expanded becoming a solid, most likely busting the can.
students take sand and pour it into a jar of iron fillings. What did the students just make.
a mixture
Water with added salt
Solution: Takes time and more energy to separate
changing states
physical change
You freeze a bowl of water with a mass of 350 grams. After you take the bowl out of the freezer what will the mass of the bowl of water be?
350 Grams
You are heating a pot of water. What evidence can you see that the water is changing into a gas? (NEED 2 Answers)
steam rising above the pan. Gas bubbles in the water (boiling)
the students take a jar of sand and iron fillings and pour it over a magnet. What is the purpose of doing this.
to separate the iron from the sand
Vegetable oil
Solution: is a combination of different plant oils
baking a cake
chemical change
In what state(s) would you find a definite volume?
solid and liquid
Explain why a balloon would shrink in size when placed in the freezer.
The cold air in the freezer caused the volume of air in the balloon to change.
Give 3 ways to make something dissolve faster.
heat, stirring, grinding into smaller pieces