WorksheetsScope 3- Changes to Matter
Total questions: 11
Worksheet time: 9mins
Matter can not be created or destroyed
conservation of matter
weight
properties
matter
the heaviness of an object
conservation of matter
weight
matter
particle
physical or chemical characteristics of matter used to describe or identify a substance
matter
particles
weight
properties
anything that has mass and takes up space
particle
property
matter
weight
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?
(a)
A student measured the weight of water, lemon juice, and sugar before mixing it. Use the weights below to answer the following questions.
Water 110g
Lemon Juice 5g
Sugar 15g
What will the total weight of the substance be when combined?
(a)
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
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?
(a)
A student measured the weight of water, Kool-Aid and sugar before mixing it. Use the table below to answer the following questions.
Water 120g
Kool-Aid 10g
Sugar 20g
What will the total weight of the substance be when combined?
(a)
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.
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.
