Year 7 Science · Unit 2 · Lesson 12
Foundation Worksheet
Learning Goals
Match each term to its definition
Draw a line connecting each term on the left to its correct definition on the right. Or write the matching letter next to each term.
| Term | Your answer | Definition |
|---|---|---|
| Evaporation | A. Water falls from clouds as rain, snow, sleet or hail. | |
| Transpiration | B. Water soaks into soil and rock, replenishing underground aquifers. | |
| Condensation | C. Liquid water changes to water vapour at ocean and lake surfaces, driven by solar energy. | |
| Precipitation | D. Water flows over land into rivers and back to the sea. | |
| Infiltration | E. Water vapour cools and changes into tiny liquid droplets, forming clouds. | |
| Runoff | F. Water vapour released by plants through tiny pores (stomata) on their leaves. |
Fill the gap
Choose the correct word from the word bank to complete each sentence about Sydney's water journey. Not all words will be used.
Rain falls on the Blue Mountains catchment area west of Sydney, this water arrives as from clouds above. Some of this water soaks into the soil in a process called , replenishing underground stores. Water that does not soak in flows over the surface as into Warragamba Dam. The sun's energy then causes from the dam's surface, returning water vapour to the atmosphere. Native bush around the catchment also releases water vapour through . When water vapour cools high in the atmosphere, forms clouds, completing the cycle.
1. Only about 0.3% of Earth's water is accessible surface freshwater. Where is the remaining 99.7% found? Name at least two locations.
2. Explain the difference between infiltration and runoff. In what situation would you expect more runoff than infiltration?
Wrap Up
In one sentence, what was the main idea of this lesson?