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Science Grade 7 Unit 2: Controlling Energy

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Last updated over 2 years ago
7 questions
I can...
  • distinguish between solute, solvent and solution
  • identify that energy is released in bond breaking
  • identify that energy is absorbed in bond making
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Question 1
1.

Match the words to the correct definition.

Draggable itemarrow_right_altCorresponding Item
Solute
arrow_right_alt
a substance that is dissolved by another substance
Solvent
arrow_right_alt
a substance that dissolves another substance
Solution
arrow_right_alt
a homogeneous mixture made of a solute dissolved within a solvent
Question 2
2.

Which sentence is true for solutes? You may choose more than one option.

Question 3
3.
You are making a cup of chocolate milk for yourself, and you need the two ingredients below. Identify the solvent, solute and solution. Drag the correct answer to the box.
Other Answer Choices:
Solute
Solvent
Solution
Question 4
4.

You are making lemonade for your classmates. The ingredients are shown in the picture below. Which is / are the solute? You may choose more than one option.

Question 5
5.
In an exothermic reaction, the amount of energy released when new bonds form is _______ (greater/less) than the amount of energy absorbed if bonds are broken.
Question 6
6.

Which of the following statements is true about bond breaking?

Question 7
7.
Bond breaking involves energy _______ (absorbed or released) and bond making involves energy _______ (absorbed or released).