Science For All
rocks and weathering topic resources
Resources for lesson 1
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Diagrams for less able students to use as a basis for their notes 
Extension work for the more able (lesson 1)Focuses on the difference between porosity and permeability. This is the text from a mini-worksheet that I use:
Rocks that contain pores are called porous. Porous rocks can contain liquids such as oil or water. Porous rocks however are not always permeable. Permeable means that a liquid can actually pass through a rock. the pores in a porous rock are not joined together, the liquid can not move from pore to pore. If the pores are linked, liquids can move throughout the rock. Permeable rocks can also be non-porous. Remember, liquids can move through a permeable rock. So, if a rock has lots of cracks in it, some of the cracks will overlap and liquid will be able to pass through the rock by getting through the cracks that are linked.
Task: Draw some diagrams with labels that show the information from this sheet.
Resources for lesson 3
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More challenging version of the sentence completion exercise:
Complete the following sentences, they are not in order:
As the r______ slows down (l_____ k_________ energy), the water can not move the l______r particles anymore so they are d__________.
As the river gets closer to the s____, it becomes s_______ and slower. Gradually, the m________ size p__________ get left behind as well.
M__________ streams flow quickly (more k________ energy) and so can carry even l_______ pieces of rock.
The sm_________ particles are in sus________ (‘fly’ along without touching the bottom).
Only the smallest (silt) p________ reach the sea. They are in suspension.
The biggest particles are r________ along by the water.
Gradually the s___t particles settle out because the river is no longer flowing.
Now, match the sentences to the boxes on the river diagram. When you think that you know where each one goes, check with your partner. Discuss any disagreements and come to an agreement on where each one should be written.
Finally, write each sentence into what you believe to be the correct box on the river diagram.
River diagram for use with sentencesExtension work:
Draw a cartoon to show the journey of some different sized particles from the mountains to the sea.
Easier version:
Complete the following sentences, they are not in order:
As the r______ slows down, the water can not move the l______r particles anymore so they are d__________.
As the river gets closer to the s____, it becomes slower and slower. Gradually, the m________ size particles get left behind as well.
M__________ streams flow quickly and so can carry even large pieces of rock.
The sm_________ particles are in sus________ (‘fly’ along without touching the bottom).
Only the smallest (silt) p________ reach the sea. They are in suspension.
The biggest particles are r________ along by the water.
Gradually the s___t particles settle out because the river is no longer flowing.
Word list :
Silt river mountain medium
smallest rolled particles sea
larger deposited suspension
Now, match the sentences to the boxes on the river diagram. When you think that you know where each one goes, check with your partner. Discuss any disagreements and come to an agreement on where each one should be written.
River diagram for use with sentencesFinally, write each sentence into what you believe to be the correct box on the river diagram.
Extension work:
Draw some cartoons or pictures to show some of the different stages of the transport of sediments.
Resources for lesson 5
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How sedimentary rocks are formed (easier).
The following sentences explain how sedimentary rocks are formed. Write the title “Sedimentary Rocks” on a fresh page at the front of your exercise book. Copy the sentences into your book.
When a river reaches the sea or a lake, it stops flowing. Any small particles it is carrying are deposited as sediment on the floor of the sea or lake.These build up in thick layers over millions of years Animals die and end up in the sediments. Their skeletons become fossils.The weight of the sediments squeeze out water from the lowest layers.The particles of sediment become stuck together by substances dissolved in the water.Answer these 3 questions in full sentences:
1. What happens to any small particles carried by a river when it reaches the sea or a lake?
2. What happens to the skeletons of dead animals that fall into the sediments?
3. How are the particles stuck together?
Put these pictures in the correct order. Cut them out and stick them in the right order. Colour the pictures if you have time.
How sedimentary rocks are formed (harder).
N.B. there are no diagrams for this in order to challenge the pupils more.
The following sentences are in the wrong order. Decide on the correct order and write them into your exercise book. Use the title “Sedimentary Rocks” and do the work on a fresh page. Draw a story board to illustrate how a sedimentary rock is formed. Use one sentence per drawing.
These build up in thick layers over millions of years Animals die and end up in the sediments. When a river reaches the sea or a lake, it stops flowing.The particles of sediment become stuck together by the substances dissolved in the water.The skeletons of dead creatures become fossils.Any small particles it is carrying are deposited as sediment on the floor of the sea or lake.The weight of the sediments squeeze out water from the lowest layers.Answer these questions in full sentences:
1. What happens to any small particles carried by a river when it reaches the sea or a lake?
2. What happens to the skeletons of dead animals that fall into the sediments?
3. How are the particles stuck together?
cliff interpretation hwk
(Microsoft Publisher document in a zip file) Alternatively, click here for the text and pictures on a web page that you can copy and paste.