Changes to Matter

• MELTING

• FREEZING

• CONDENSING

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

• MELTING

• FREEZING

• CONDENSING

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

• TRUE

• FALSE

Tags

NGSS.MS-PS1-4

A student places 125 grams of water and 25 grams of ice into a water bottle. Which of the following is the best prediction for the mass of the contents of the water bottle after the ice has melted into the water?

Tags

NGSS.MS-PS1-5

Will the TOTAL weight of the water, lemon juice, and sugar be the same or different before and after mixing the ingredients? (circle one)

• it will be less

• it will be the same

• it will be more

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A student places 200 grams of cream soda and 50 grams of ice cream into a glass. Which of the following is the best prediction for the mass of the contents of the glass after the ice cream has melted into the soda?

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

If the TOTAL weight of the water, Kool-aid, and sugar stayed the same before and after mixing the ingredients, what could be a possible reasoning about what you have learned:

• The reason I believe the weight is different before and after the substances are mix is because the sugar dissolves into the water and disappears.

• In class, we learned that when 2 or more substances are combined, the weight of the combined substances will stay the same.

• Based on our experiments in class, the weight stays the same before and after mixing because the scale showed the same number.

Tags

NGSS.MS-PS1-5

You weigh a small tablet and a cup of liquid. You place the tablet into the liquid and it begins to bubble until you can no longer see it. You weigh the final mixture and it is lighter than the original ingredients. What do you think happened to make it weigh less?

• When the tablet dissolved, the weight disappeared too causing it to weigh less.

• When the tablet dissolved, there was a chemical reaction.

• When the tablet dissolved, gas was released into the air causing the final mixture to weigh less.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

anything that has mass and takes up space

• particle

• property

• matter

• weight

Tags

NGSS.MS-PS1-5

when two or more substances combine to make a NEW substance

cuando dos o más sustancias se combinan para formar una NUEVA sustancia

• chemical change

• physical property

• chemical property

• physical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5