5th Grade - Matter and Mixtures

Instructions:  Students, complete the portion your teacher assigns. 
Read the info in black.  Write the info in blue in your science journal.

This may not be what comes to mind when you think of a mixture, but is this a mixture? How do you know?

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To get started, click to read the story of the
Crow & the Pitcher.
What properties of matter did the crow use in order to reach the water?

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Matter

• Matter is anything that has mass and takes up space. 
• Mass is like weight, but gravity causes matter to have weight. 
  -In the absence of gravity, objects still have mass. 
  -Mass is a measure of the amount of matter that makes up an object. 
  -Mass is measured in grams-g.  (or kilograms-kg, 1000g - 1kg)
• Volume is a measure of how much space an object takes up. 
  -Volume is measured in cubic centimeters or liters - L.  (or milliliters-mL)

Sketch a brick that is 20cm long, 8cm wide, and 6cm high.   
​Use the formula length x width x height to calculate the volume of the brick.
                                                                                                                                                                                        960 cubic centimeters  

Are the bricks in this photo matter? Do they have mass? Do they have volume? What type of matter are they made of?

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• The periodic table shows all of the pure forms of matter.   
• Make a list of the elements that are familiar to you.
• Most elements are solids at room temperature.
• Two elements are Hg and Br are liquids at room temperature. 
  -What do Hg and Br stand for?
• Some elements are gases at room temperature. 
  -They are H, N, O, F, Cl.  What do these symbols mean?
• Watch the video.
  -Gallium, ____, is a metal that melts from a solid to a liquid at
  ​85.6 degrees F (29.76 degrees C).​
  -What do you think would change liquid gallium into solid gallium?

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Copy the chart. Complete it as you watch the video above.	Examples	Description based on shape and volume	Description based on atoms
Solids	-	-	-
Liquids	-	-	-
Gases	-	-	-

• What else did you learn from the video?  
• Did the video leave you with any questions?

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Slime Recipe
1.  To make this slime 20 grams of white glue, 20 grams of water, and 1 gram of orange food coloring were stirred together making a glue solution.

2.  Next, 10 grams of borax was stirred with 20 grams of water making a borax solution.

3.  Finally, the glue solution and the borax solution were combined and stirred.

• Based on the photo, or your experience with slime, it is a solid, liquid, or gas?
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• Based on the recipe, what is the total mass of the slime?
  
  
• Why did the glue, water, and food coloring need to be stirred?
  
  
• ​Based on the context clues, what is a solution?
  
  
• The word mixture is not in the recipe, but what is a mixture? 
  
  
• What word in the recipe could have been the word mixture?

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Copy the Solubility Chart  

A 5th grader at Rock Hill Elementary School conducted an investigation.  Her data is shown in the chart.                                link

• What question do you think she was trying to answer? 
• What would your hypothesis have been if this had been your investigation?
• What were the controlled variables for her investigation?
• What conclusion can be drawn from the data collected
• What follow-up questions would you ask about this investigation?​

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