Make sure you have understood everything in this section (Lessons A1 and A2).
Use the Self-Check below, and the Self-Check & Lesson Review Tips to guide your learning.
This is also a good time to visit your Section 1 Checklist to make sure you have completed all the recommended learning activities.

Unit A Section 1 Self-Check

Instructions


Complete the following 6 steps. Don't skip steps – if you do them in order, you will confirm your understanding of this section and create a study bank for the future.

  1. DOWNLOAD the self-check quiz by clicking here .

  2. ANSWER all the questions on the downloaded quiz in the spaces provided. Think carefully before typing your answers. Review the lessons of this section if you need to. Save your quiz when you are done.

  3. COMPARE your answers with the suggested "Self-Check Quiz Answers" below. WAIT! You didn't skip step 2, did you? It's very important to carefully write out your own answers before checking the suggested answers.

  4. REVISE your quiz answers if you need to. If you answered all the questions correctly, you can skip this step. Revise means to change, fix, and add extra notes if you need to. This quiz is NOT FOR MARKS, so it is perfectly OK to correct any mistakes you made. This will make your self-check quiz an excellent study tool you can use later.

  5. SAVE your quiz to a folder on your computer, or to your Private Files. That way you will know where it is for later studying.

  6. CHECK with your teacher if you need to. If after completing all these steps you are still not sure about the questions or your answers, you should ask for more feedback from your teacher. To do this, post in the Course Questions Forum, or send your teacher an email. In either case, attach your completed quiz and ask; "Can you look at this quiz and give me some feedback please?" They will be happy to help you!

Be a Self-Check

Superhero!



Self-Check Quiz Answers

Click each of the suggested answers below, and carefully compare your answers to the suggested answers.

If you have not done the quiz yet – STOP – and go back to step 1 above. Do not look at the answers without first trying the questions.

 
Storm sewer drains lead to rivers and streams that are home to fish and many other organisms. Old chemicals are an environmental hazard that can harm and kill living things in aquatic ecosystems.
There are a few safety measures the girl could take. They include:

  • Tie back her long hair so it doesn’t accidentally fall in the flame
  • Roll up loose sleeves so they don’t accidentally brush through the flame
  • Don’t leave the open flame unattended
  • Make sure there are no flammable materials close to the flame
People depend on many fluids everyday. Some of these fluids include:

  • Drinking water that our bodies use to transport nutrients and wastes
  • Fluids in transportation machines, like fuel in cars
  • Natural gas that heats our homes
  • Air that we breathe to obtain oxygen for our body cells
Fluids have no fixed shape and they flow. Liquids and gases have no fixed shape and they flow, which is why they are fluids. Solids on the other hand, have a fixed shape. Solids do not flow from one place to another; rather, they require energy to make them move.
There are a number of ways to safely work with hazardous chemicals around the house, which include:

  • Storing chemicals out of the reach of small children
  • Storing flammable materials and compressed gases away from heat
  • Wearing gloves and eye protection when working with corrosive materials
  • Disposing of chemicals at fire stations or landfill collection sites
  • Washing your hands immediately after working with harmful chemicals