Matter and Mixtures Unit Test

In which of the following states of matter does a substance take the shape of its container?
   I. solid
 II. liquid
 III. gas

• II Only 
• II and III only
• I, II, and III
• III only

Oliver has two glasses of water. Both glasses have the same amount of water in them. Oliver pours 5 grams of sugar into glass 1. He pours 10 grams of sugar into glass 2.

• Glass 1 has a higher concentration of sugar than glass 2. 
• Glass 2 has a smaller number of sugar particles than glass 1. 
• Glass 2 has a higher concentration of sugar than glass 1. 
• Glass 1 and glass 2 both have the same concentration of sugar. 

Which of the following tools would be most helpful for separating a solid and a liquid? 

• measuring cups
• balance
• filter paper
• ruler

Which of the following phases of water has neither a definite shape nor a constant volume? 

• none of these
• solid
• liquid
• gas

Tags

NGSS.MS-PS1-4

Todd's mom is making a salad for his lunch. She adds lettuce, tomato, cucumbers, and onions to her bowl and stirs them together. How can Todd tell that the salad is a mixture and not all one substance? 

• He has to put it in the refrigerator. 
• He cannot pick out the ingredients. 
• He still has to add the salad dressing. 
• He can use his fingers to pick out the tomatoes. 

Kathy has a bucket of crayons. She digs through the crayons and pulls out all of the yellow ones. Which answer best describes Kathy's actions? 

• separating a mixture by size
• separating a mixture by color
• making a mixture of solids
• making a mixture of colors

Which is easier to separate into its ingredients, a mixture or a solution? 

• you can not separate either
• solution
• a mixture that is not a solution
• both take equal efforts to separate

How do water particles behave when they are in the gas state? 

• The molecules do not move. 
• the molecules can move short distances and vibrate slightly. 
• The molecules are packed together in patterns. 
• The molecules move freely and rapidly in all directions. 

Tags

NGSS.MS-PS1-4

Mrs. Harper has a cup full of paper clips. Some are made of metal and others are made of plastic. She wants to separate the metal paper clips from the plastic ones.

Which of these things would help her the most? 

• a sifter
• a cup of water
• a filter
• a magnet

Use the table to answer the question.

Which samples are solids? 

• X and Y
• Y and Z
• W and Z
• W and X