Geography · Professor Mercator

Every card in Rivers and coasts, Year 7: more practice

The whole deck, in order — so you can read it through before your child ever sees it.

1 KS3-GEOG-RIV-0026

What is the name of the process where the Sun's heat turns liquid water into water vapour?

Evaporation

HintIt happens at the surface of seas, lakes and rivers.

WhyEvaporation is the first step of the water cycle. Warm air carries the vapour upwards.

2 KS3-GEOG-RIV-0027

What happens to water vapour as it rises and cools?

It condenses into tiny liquid droplets, forming clouds

HintThe vapour changes state again.

WhyCondensation is the opposite of evaporation. When droplets grow large enough they fall as precipitation.

3 KS3-GEOG-RIV-0028

What is the longest river in the UK?

The River Severn

HintIt flows from Wales into England and out to the Bristol Channel.

WhyThe Severn is about 354 km long. The Thames is the longest river wholly in England.

4 KS3-GEOG-RIV-0029

A smaller stream or river that flows into a larger river

A tributary

HintThe larger river is joined by these.

WhyA river's tributaries gather water from across its drainage basin.

5 KS3-GEOG-RIV-0030

The point where two rivers meet

A confluence

HintTwo rivers become one here.

WhyA tributary joins the main river at a confluence. The word means 'flowing together'.

6 KS3-GEOG-RIV-0031

The high ridge of land that separates one drainage basin from the next

A watershed

HintRain falling either side drains into different rivers.

WhyRain that falls on one side of a watershed flows into one river, and rain on the other side flows into another.

7 KS3-GEOG-RIV-0032

What is deposition in a river?

The river drops the material it was carrying

HintIt happens when the flow loses energy.

WhyWhen a river slows down, it can no longer carry its load. Sand, silt and pebbles settle on the bed or banks.

8 KS3-GEOG-RIV-0033

Where on a meander is a river most likely to deposit material: the inside bend or the outside bend?

The inside bend

HintThe water flows slower on this side.

WhySlower water has less energy, so it drops its load. Faster water on the outside bend erodes the bank.

9 KS3-GEOG-RIV-0034

Large rocks being rolled along a river bed are moved by which process of transport?

Traction

HintThey are rolled, not lifted.

WhyTraction moves big boulders in floods. Saltation hops smaller stones. Suspension and solution carry fine material and dissolved minerals.

10 KS3-GEOG-RIV-0035

Why do pebbles get smaller and rounder as they travel downstream?

They knock against each other and the bed and wear away (attrition)

HintThink of stones bumping into one another all the way down.

WhyThis process is called attrition. It is one reason that river sediment is finer near the mouth.

Keep what you learn

Here, nothing is saved. In your child’s own sky every card is scheduled — it comes back just before they’d forget it — and the professor who wrote it is one tap away.