C2.3 - Lesson 7: Catchment area of the Rhine

• Aardrijkskunde
• Middelbare school
• vwo
• Leerjaar 2

From the mountains to the sea

C2.3: Catchmentarea of the Rhine

[e-mail]

What is the plan for today?

Short repeat of C2.2: Rivers of ice

THE LAST PARAGRAPH

• C2.3: Catchment area of the Rhine

Goals of last lesson

1. You can explain the differences in origin between a U-shaped valley and a V-shaped
   valley. 
2. You can relate the terms glacial tunnel, glacial portal and glacier-fed river to each other.
   
3. You can explain how the weathered material is carried by 4 different transporters (G83).
   
4. You can describe the relationship between the flow speed of the river and erosion.

You can relate the terms glacial tunnel, glacial portal and glacier-fed river to each other.

You can describe the relationship between the flow speed of the river and erosion.

Higher means a higher current

CHECK HOMEWORK

C2.3: Catchment area of 

the Rhine

Today's goals

1. You can explain the relationship between meanders and the flow speed in the Upper Plain
   (W9, W10, G90). 
2. You can explain in 3 steps how an oxbow lake is created (W11, G90).
   
3. You can use a map to show the watershed between two catchment areas (G120).
   
4. You can explain why the flow rate in summer is much lower than in winter (G120).

Catchment area of the Rhine

Catchment area /

watershed

G120 in your GeoGuide

W8 in your workbook

Upper- middle- and lower reaches

MEANDERING (G90)

A natural bend in a river.

EROSION

SEDIMENTS

Meander

• On the lowlands -> low flow speed -> less erosion -> wide valley
  
• Rhine will meander = make wide bends

Meanders are getting bigger and bigger. The water flows faster in the outer bend (erosion) and slower in the inner bend (sedimentation).

Formation of an oxbow lake

Open exercise 6 in your workbook

Finished? Make exercise 9

G79: HORST &

GRABEN

Let's go!

• Read the text at page 28/29 of your coursebook.
  
• Make exercises 1, 6 & 9 of paragraph 3 in your workbook.
• Read GeoGuide number 79 & figure 3.26

Rules while working:

• You're allowed to work together, but whisper.
  
• Raise your finger if you've a question.
  

Finished? Start working out the list of knowledge and skills.

G121: Fall and gradient

Fall: The difference in altitude between two points along a river.

Gradient: The fall per kilometre.

Take question 8 in front of you

You can calculate the fall and gradient between 2 points in a river (G121).

FALL & GRADIENT

Today's goals

1. You can explain the relationship between meanders and the flow speed in the Upper Plain
   (W9, W10, G90). 
2. You can explain in 3 steps how an oxbow lake is created (W11, G90).
   
3. You can use a map to show the watershed between two catchment areas (G120).
   
4. You can explain why the flow rate in summer is much lower than in winter (G120).

Answer today's goals in your notebook, it's part of the homework.

Homework for next lesson

Make exercises 1, 2, 3, 5 & 6 of paragraph 3 in your workbook.