Section 3 Pre/Post Assessment

Based on the data above, which of the following is a chemical change? (L2)

• Mixing baking soda and vinegar together

• Mixing marbles and rocks together

• Melting ice cubes in a glass of water

• Dissolving sugar in a beaker of water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The students then mix two clear liquid substances together in a large beaker. When they are mixed, the beaker gets warm and the solution gets white and cloudy.

CLAIM (What do you think?)
Is this a chemical or a physical change?

• Chemical change

• Physical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

2. The students then mix two clear liquid substances together in a large beaker. When they are mixed, the beaker gets warm and the solution gets white and cloudy.
   

3. EVIDENCE (How do you know it is chemical or physical?)

   
   

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

The students then mix two clear liquid substances together in a large beaker. When they are mixed, the beaker gets warm and the solution gets white and cloudy.

REASONING (How does the evidence support your claim?)

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What state of matter is the ice cream treat in before it was left on a sunny table?

• Solid

• Liquid

• Gas

• Plasma

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

The picture shows an ice cream treat before and after it was left on a table on a sunny afternoon for one hour. Knowing that the ice cream treat is an example of matter, you decide to investigate what stays the same and what has changed. Is this a chemical or physical change? Explain your reasoning. (L2)

• Chemical change

• Physical change

Tags

NGSS.MS-PS3-4

What is one property of the ice cream treat that changes after it is left on the sunny table?

• It becomes colder.

• It melts and becomes liquid.

• It changes color.

• It becomes harder.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

To find out if the total mass of the ice cream treat changed you decide to measure the mass/weight of the ice cream treat and stick before and after it was left in the sun. What tool could you use to measure the mass or weight?

• Ruler

• Thermometer

• Balance scale

• Protractor

Tags

NGSS.MS-PS1-2

The table below shows the mass of the ice cream treat before and after being left in the sun. In the table, make a guess about what the mass will be after it is left in the sun.

• 50 grams

• 75 grams

• 100 grams

• 25 grams

Tags

NGSS.MS-PS1-2

The table below shows the mass of the ice cream treat before and after being left in the sun. How will the mass of the ice cream treat and stick, after it was left out in the sun, compare to the mass of the ice cream treat and stick before?

• The mass will increase.

• The mass will decrease.

• The mass will remain the same.

• The mass will fluctuate.