GUESS THE WORD (Glossary)
Where does a river end, often in a sea or lake?
Mouth.
Which part of a river is usually closest to the mountains: upper course or lower course?
Upper course.
What do we call water that falls from the sky as frozen white flakes?
Snow.
A river is rising very fast. Is it safer to stay near the river or move to higher ground?
Move to higher ground.
A fish lives in a river. A camel lives in the desert. Which animal needs water to swim?
Fish.
What do we call a river and all the smaller rivers that join it?
River system.
What do we call the sides of a river?
River banks.
After rain, water collects in a small hole in the road. What do we call this small pool?
Puddle.
A river is full of plastic rubbish. What is ONE thing students can do to help?
Organise a clean-up or stop littering.
A glass is half full of water. You add more water. Does the water level go up or down?
Up.
What is the word for water falling from clouds as rain, snow, or hail?
Precipitation.
In which part of a river do we usually find the largest rocks: upper course or lower course?
Upper course.
Which can absorb more rainwater: dry soil or concrete?
Usually dry soil.
A village needs water for farming. What can farmers use river water for?
Irrigation (watering crops).
Two identical bottles contain the same amount of water. One is frozen, and the other is liquid. Which one is heavier?
Both weigh the same!
What do we call the place where two rivers meet?
Confluence.
A river carries stones. Over time, the stones become smaller and rounder. Why?
They hit and rub against each other, breaking into smaller, smoother pieces (attrition).
The weather is very hot and dry for many weeks. What may happen to the water level in a river?
It may decrease.
People build houses directly on a floodplain. What is one danger?
Houses may be flooded and damaged.
You walk 10 steps north, then 10 steps south. Where are you now?
Back at the starting point, assuming equal-length steps in opposite directions.
What is the word for the land area where water flows into the same river system?
Drainage basin (catchment area).
A river is wide and deep. Another river is narrow and shallow. Which one must have more water flowing every second?
We cannot know without the flow velocity. Discharge depends on both channel area and velocity.
Heavy rain falls on a mountain. After some time, a river below becomes bigger. Why?
Rainwater flows over and through the ground into the river, increasing the amount of water.
A village wants to build a school. There are two places: A is next to a river that floods every year; B is on higher ground. Which place would you choose, and why?
B, because higher ground is usually less likely to flood.
Two buckets have the same size. Bucket A is full of water. Bucket B is half full. Which bucket has more water, and how much more?
Bucket A has twice as much water as Bucket B.