Science Grade 7 Unit 2: Controlling Energy

Last updated over 2 years ago

7 questions

Instructions

Required

Science Grade 7 Unit 2: Controlling Energy

Last updated over 2 years ago

7 questions

Instructions

I can...
distinguish between solute, solvent and solution 
identify that energy is released in bond breaking 
identify that energy is absorbed in bond making

Required

Match the words to the correct definition.

Draggable item		Corresponding Item
Solution		a substance that is dissolved by another substance
Solute		a substance that dissolves another substance
Solvent		a homogeneous mixture made of a solute dissolved within a solvent

Required

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

Required

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.

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.

Required

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.

Required

Which of the following statements is true about bond breaking?

Required

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