Educational worksheet for identifying river system features, including a diagram and matching terms.

Let's solve this step by step based on the image and the task provided.

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Part 1: Identify the river features marked A to I

We are given a diagram showing a river system from its source in the mountains to the sea. We need to match the letters A to I with the correct river features listed below:

- mouth
- lake
- waterfall
- delta
- meander
- tributary
- floodplain
- sea
- source

Now, let’s analyze each letter:

#### A – Located at the highest point in the mountains, where the river begins.
✔ This is the source of the river.

#### B – A steep drop where water falls from a height.
✔ This is a waterfall.

#### C – A smaller stream flowing into the main river.
✔ This is a tributary.

#### D – A large bend in the river.
✔ This is a meander.

#### E – A wide area of flat land next to the river that may flood.
✔ This is a floodplain.

#### F – A body of water surrounded by land.
✔ This is a lake.

#### G – The river splits into many branches before entering the sea.
✔ This is a delta.

#### H – Where the river meets the sea.
✔ This is the mouth.

#### I – The large body of water at the end of the river.
✔ This is the sea.

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✔ Matching Answers:

| Feature | Letter |
|-------------|--------|
| mouth | H |
| lake | F |
| waterfall | B |
| delta | G |
| meander | D |
| tributary | C |
| floodplain | E |
| sea | I |
| source | A |

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Part 2: Fill in the gaps using the picture

Now use the diagram and your knowledge to complete the sentences.

a) The place where a river starts is called its source.
→ Answer: source

b) A tributary is a smaller stream or river which flows into a larger one.
→ Answer: tributary

c) A large bend in a river is called a meander.
→ Answer: meander

d) A floodplain is an area of land that gets flooded when a river bursts its banks.
→ Answer: floodplain

e) The mouth is the place where the river enters the sea.
→ Answer: mouth

f) A delta is an area of land where a river splits into many branches before entering a lake or the sea.
→ Answer: delta

g) A waterfall is a cascade of water falling from a height, formed when a river or stream falls over a steep drop.
→ Answer: waterfall

h) A large body of water surrounded by land is called a lake.
→ Answer: lake

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✔ Final Answers:

#### Part 1: Match Letters to Features
- mouth → H
- lake → F
- waterfall → B
- delta → G
- meander → D
- tributary → C
- floodplain → E
- sea → I
- source → A

#### Part 2: Fill in the Blanks
a) source
b) tributary
c) meander
d) floodplain
e) mouth
f) delta
g) waterfall
h) lake

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This completes the task! Let me know if you'd like a labeled version of the diagram.