List the meaning of each of the WHMIS symbols shown
How do HHPS symbols differ from WHMIS?
Match the state change described with its proper terminology.
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
Solid to liquid | arrow_right_alt | Evaporation |
Liquid to gas | arrow_right_alt | Deposition |
Solid to gas | arrow_right_alt | Freezing |
Liquid to solid | arrow_right_alt | Melting |
Gas to liquid | arrow_right_alt | Sublimation |
Gas to solid | arrow_right_alt | Condensation |
How could you determine if a substance is pure or a mixture?
Label what each component in the diagram below tells us about water molecules.
How does a solution differ from a mechanical mixture?
How can we increase the concentration of a solution. You can use a diagram to help support your answer.
Match the pH provided with the type of solution it represents.
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
pH = 14 | arrow_right_alt | Neutral |
pH = 7 | arrow_right_alt | Acid |
pH = 2 | arrow_right_alt | Base |
Describe one factor that can speed up the process of corrosion.
What is friction? Why does it create problems for machinery?
Match the types of heat transfer with the example that represents it.
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
Radiation | arrow_right_alt | A person burns their hand on a running engine. |
Conduction | arrow_right_alt | As water is heated, the hot water rises and pushes the cold water down |
Convection | arrow_right_alt | The suns rays warm up sand on a beach. |
Describe how you would keep a thermos of hot chocolate warm.
Label the plant cell diagram.
Why do our cells need oxygen?
How does the energy in food get sent to your cells? Use as much detail as possible.
Why is it important to have a proper diet that includes carbohydrates, lipids and proteins?
All energy comes from:
Explain the process by which energy is passed down the food chain shown:
Why is there more energy available to organisms at the bottom of a food chain compared to organisms at the top?
Determine if the factors listed are biotic or abiotic factors in an ecosystem.
Biotic | Abiotic | |
|---|---|---|
Sunlight | ||
pH of soil | ||
decomposers | ||
humidity | ||
predators |
Describe the water cycle using the diagram provided.