Properties of Matter
Which property are you measuring when using a scale or balance?
Mass
Mrs. Correa is trying to make chocolate milk for her son for breakfast but is running late. How can she quickly dissolve the chocolate powder into the milk?
a. decrease the temperature of the milk
b. increase the amount of chocolate powder
c. stir the chocolate powder
d. compact the chocolate powder into a large cube
c. stir the chocolate powder
How does temperature affect chemical and physical changes?
high temperature speeds it up/ lower temperature slows it down
What tool would you use to seperate sand and shells?
a. magnet
b. sieve
c. forceps
d. water/evaporation
b. sieve
PROPERTIES OF MATTER
Measurable Properties
Matter- anything that takes up space
Mass- how much matter is in an object
Volume- how much space an object takes up
Water displacement- method to measure volume; place an object in water and see how much it rises
Observable Properties
Color, texture, odor, magnetism
States of Matter
Solid- definite shape, mass and volume
Liquid- definite mass and volume, indefinite shape
Gas- defintie mass, indefinite volume and shape
Kai is looking at an object. He notices it is red and is in the shape of a pyramid. What state of matter is the object in? How can you tell?
solid; it has a definite shape
Which of the following is a way to decrease dissolving time?
A. put it in direct sunlight
B. stir or shake it
C. put it in the freezer
D. reduce the size of the particles
C. put it in the freezer
Food spoiling is an example of a chemical change. Why do we put food in the freezer?
to slow down the spoiling of food
What tool would you use to seperate iron fillings and flour?
a. sieve
b. forceps
c. magnet
d. water/evaporation
c. magnet
DISSOLVING
Examples of things that dissolve in water
salt, sugar, drink mix, baking soda
Examples of things that DO NOT dissolve in water
rice, oil, sand, dirt, flour
3 Factors that Affect Dissolving
1) stirring/shaking
2) temperature
3) particle size
Mrs. Correa is melted a crayon. How is the melted crayon different from the original crayon?
A. both have definite mass, volume and shape
B. Both have definite mass and volume but only the original crayon has definite shape
C. Both have definite mass and volume but neither have a definite shape
D. Both have definite mass and volume but only the melted crayon has definite shape
B. Both have definite mass and volume but only the original crayon has definite shape
Cadence is gathering items in her kitchen to see which will dissolve. Which of the following items will NOT dissolve in water?
A. sugar
B. oil
C. salt
D. drink mix
B. oil
Mrs. Correa is melting a candle. How would increasing the temperature affect this physical change?
a. it would not the candle is not affected by temperature
b. the candle would take longer to melt
c. the candle would take less time to melt
d. the candle would stop melting
c. the candle would take less time to melt
What could you use to seperate drink mix and sand?
a. sieve
b. magnet
c. water/evaporation
d. forceps
c. water/evaporation
TEMPERATURE
The higher the temperature, the faster the chemical/physical change takes
The lower the temperature, the slower the chemical/physical change takes
Higher temperatures speed up the process and lower temperatures slow down the process
What are you measuring when placing an object in water and measuring how high the water increased by?
Volume
Which of the following WILL dissolve in water?
A. butter
B. rice
C. dirt
D. sugar
D. sugar
Reid is making spagetti. He notices his water is boiling over the pot. What is one way to slow down the boiling?
a. increase the temperature
b. add more water
c. add more spagetti
d. decrease the temperature
d. decrease the temperature
Which of the following mixtures would you use water to seperate by sinking and floating the objects?
a. ping pong balls and golf balls
b. rocks and shells
c. sand and iron fillings
d. sugar and dirt
a. ping pong balls and golf balls
SEPERATING MIXTURES
demonstrate and explain how mixtures of solids can be separated based on observable properties of their parts (e.g., particle size, shape, color, magnetic attraction) through sorting, screening-sieve, filtration, magnets, and evaporation.
Tools to seperate mixtures
Forceps- used to sort mixtures based on shape/colorSieve- used to seperate objects small enough to fit in the sieve holes and objects not small enough Filters- used to seperate liquids and solids Magnets- used to seperate objects that are magnetic and objects that are not Water/Evaporation- used to seperate objects that dissolve in water and objects that do not
Which object has no definte shape and no definite volume?
A. Scissors
B. Mountain Dew
C. Oxygen
C. oxygen
Reagan is late for soccer practice and wants to quickly dissolve his prime drink. What could he do?
A. loosen the drink mix so the particles are smaller and seperated before pouring in water
B. decrease the temperature of the water
C. let it sit after pouring the drink mix into his water bottle
D. pour more drink mix into the water bottle
A. loosen the drink mix so the particles are smaller and seperated before pouring in water
Milk going sour is a chemical change. In which enviroment would milk go sour the fastest?
a. outside on a snowy day
b. on the table in your home
c. outside in Florida during the summer
c. outside in Florida during the summer
Which of the following mixtures would you use forceps to seperate?
a. trail mix
b. sugar and salt
c. water and coffee grounds
d. iron fillings and sand
a. trail mix