This type of matter has a fixed volume and a fixed shape
solid
What is a physical property?
A characteristic you can observe using your 5 senses
A ___________ is a combination of 2 or more substances that CAN be separated.
A ____________ is a combination of 2 or more substances that CANNOT be separated.
Mixture
Solution
Which of these is an example of a CHEMICAL change?
- A nail rusting - Ripping a paper
- Snapping a pencil - Filling a jello mold
A nail rusting
**Rust is ALWAYS a chemical change!
Mrs. Stutzman mixes sand, salt, sugar, and water. She decides she wants separate it out using a coffee filter. What will happen?
a. The sand will stay in the filter and the water, salt, and sugar will flow through.
b. Everything will flow through into the cup.
c. The sand and salt will stay in the filter, and the water and sugar will flow through.
A
If you apply heat to a liquid it will _____________.
If you put a liquid in the freezer, it will __________.
These are ___________ changes!
- evaporate
- freeze
- physical
liquid
Color Magnetic Attraction
Shape Taste
Size Texture
Odor
List three things that are a mixture.
List three things that are a solution.
- Trail mix, salad, cereal
- Kool-aid, soda, salt dissolved in water
Which of these actions would result in a chemical change while making a grilled cheese sandwich?
a. Cooking the sandwich on the stove
b. Adding more cheese
c. Putting butter on the bread
A
A solution is made when a solid, liquid, or gas is dissolved in another solid, liquid, or gas. Which is the best example of a solid dissolved in a liquid?
a. car exhaust
b. ocean water
c. root beer
Ocean water
Solids that do not dissolve when mixed with a liquid can be separated by..
a. shaking
b. pouring
c. filtering
d. adding chemicals
C.
This type of matter has no definite shape or volume.
Gas
By color, taste, shape, size, texture, smell.
Dissolve or not dissolve
Salt will _____________ in water.
Sand will ____________ in water.
Sugar will ___________ in water.
Salt will DISSOLVE in water.
Sand will NOT dissolve in water.
Sugar will DISSOLVE in water.
Billy Bob Joe made a list of chemical and physical changes. Which one is in the wrong column?
Crumpling aluminum into a ball is a physical change
During an experiment, Carlos heated a beaker of water over a hot plate burner. After a period of time, the beaker was empty. Which statement describes what happened?
A. The water froze.
B. The water melted.
C. The water condensed.
D. The water evaporated
D. Remember, water evaporating is a PHYSICAL change. It's known as a "phase change".
If you were to mix sugar into one cup of HOT tea and one cup of COLD tea, in which cup would the sugar dissolve faster?
Faster -
Slower -
Faster - the hot cup with the hotter temperature
Slower - the cold cup with the lower temperature
If you boil water or let an ice cube melt, the water goes through a ___________ of ____________.
change of state
What is the easiest way to separate out the metal objects?
Use a magnet
Which of these would result in the sugar being dissolved fastest? (take the least amount of time)
a. No stirring and cold water
b. Stirring with cold water
c. No stirring with hot water
d. Stirring with hot water
D
List 2 physical changes and 2 chemical changes happening in the picture.
Chemical Changes
1. Cooking the hotdog
2. Burning the wood
Physical Changes
1. Boiling water
2. Chopping wood
Which set of data MOST likely shows the beaker with both stirring and heat?
Beaker 1 has the lowest times so it had both stirring and heat to help it dissolve faster.
Which 2 people observed a solid?
Billy and Bob
Which statement is true about the difference between a LIQUID and a SOLID?
A. Temperature can change a solid to a liquid, but it cannot change a liquid to a solid.
B. Solids have a definite volume and liquids do not have a definite volume.
C. The particles in a solid are much closer together than the particles in a liquid.
C. The particles in a solid are much closer together than the particles in a liquid.
I-SPY
There is an object in the room that is gold, shiny, smooth, and roughly 8 inches tall. It has no smell and you can't taste it.
The gold fortnite llama
Mrs. Myers is making a cake. When she adds butter, eggs, flour, milk, and sugar into a bowl together, which is the only one that will dissolve?
the sugar
Give 3 examples of a chemical change and 3 examples of a physical change.
Chemical
- rust, rotting, decaying, digesting, fireworks, batteries, burning
Physical
- ripping, bending, breaking, tearing, cutting, snapping
Using the data from the chart, which statement CORRECTLY describes one of the materials?
A. Myers observed a gas.
B. Christian observed a solid.
C. Felia observed a liquid.
D. Fink observed a liquid.
D. Fink observed a liquid.
**Explain**