Group presentations

Today we will be working in groups of two on presentations for tomorrow. They will go for no more than 2 minutes each and will deal with one question about this topic. Some will be about heating, and some will be about magnetism. The tasks for today are:

1. Organise a group of two and get a question from Mr. Cole.
2. Find information on the internet or in your books about your topic, and make sure you understand it!
3. Make 2-5 powerpoint slides about your topic, and write a script so you will know what to say. 
4. Practice your part so you know what to do, there will be prizes for good presentations!!

We will present these tomorrow in J18, so make sure you come on time. For homework, read over your section so you know what you will say in front of the class. 

Heating

Today we're going to keep working on ways that things can be heated. Answer the following in your books.

1. What needs to happen for conduction to occur?
2. How is the food on this bbq getting warmed? Name all three types of heat transfer here:

3. What is convection?
4. Why is a convection oven better at cooking? 
5. Watch this video. Explain how Heston uses conduction, convection and radiation to create the meal:
6. Think of your favourite hot food. Find a picture of it, and put it on a powerpoint slide. You need to use arrows and axplanations to show HOW the food is heated (by conduction, convection, radiation, or more than one) and where the heat comes from. Save this and we will print it if we can.

Homework:

For one meal you have this week, explain what you had which was cooked and how it was heated. Make sure you use thte terms from class today. Bring it in next week. on Monday.

Heating, cooling and magnetism

Today we're going to be working on the topics that we will continue with after half term - heating, cooling and magnetism. Answer the following in your books.

1. Watch this animation. What are the three ways that heat can be transferred?
2. Give three examples of conduction:
3. Which three metals can be used to make magnets?
4. How are magnets different to normal objects? Use this picture to help you explain:

   

   A magnet on the left, a non magnet on the right.

5. What is an electromagnet? Describe one and draw a diagram:
6. Watch this video, and explain where electromagnets can be useful:
7. Complete this sentence - 'Substances get ...............when they are heated and.................when they are cooled.'
8. Explain what happens to particles when they heat up. What problems can this cause with large objects like bridges?
9. Describe shrink fitting:
10. Try and finish this challenge!
11. Try this activity. What charges attract each other? Which ones repel?
12. One more activity if you finish early.....

Rocks and weathering revision

Today we will be starting to revise for the tes on rocks and weathering next week. Answer the following in your books:

1. What does limestone look like?
2. Using the link above, what sort of rock is it? (metamorphic, sedimentary or igneous?)
3. Explain one problem associated with building things out of limestone:
4. What will this lava form when it cools down?
5. What influences the size of crystals in a rock formed this way?
6. What is metamorphic rock?
7. Watch this animation ( http://www.bbc.co.uk/bitesize/ks3/science/environment_earth_universe/rock_cycle/activity/ ), and explain what you can often find buried in sedimentary rock:
8. Try this quiz, which is fairly similar to the questions you'll have on the test next week:
9. Use the rock cycle to explain how a sedimentary rock could become a metamprohic rock:
10. How would you describe weathering and erosion? Give two ways a rock can be eroded:
11. Try this quiz (it's pretty hard so don't worry if you get some wrong!).
12. Last of all, try and find out what coccolithophores are and what part or Britain they helped create.  There's an achievement point for anyone wo can do this!

Rocks and weathering - types of rocks

Today we're going to continue talking about volcanoes and types of rocks.  Answer the following in your books:

1. Where is Mt. Etna? -
2. Briefly explain how sedimentary rocks are formed -
3. Watch this video, and explain how limestone is formed:
4. What does lava form when it cools down? -
5. Use this interactive site to find out what type of lava creates shield volcanoes -
6. Use the link from above to create a volcano - What things came out of your volcano? Write down at least three.
7. Use the slideshow on this page to find out how far tectonic plates move each year:
8. Where are most volcanoes found? Use the link form the previous question.
9. Play this game. Which disasters might be caused by tectonic plates moving?

Try these once you're done.

Revision

Today we're going to start revision for the test which we will sit on Friday. It will cover what we've done since half term - microbes and ecosystems. Complete the following in your book.

1. How are pathogens stopped from entering the body?
2. What would happen to the population of Hawks if the number of insects increased in this food web?
3. What is an adaptation? What does it help a plant or animal do?
4. Bacteria grow well if incubated at 37 degrees celsius. Why is this?
5. Who was Alexander Fleming? What did he discover?
6. For the diagram below, which antibiotic worked best for each species of Bacteria? (name them using the colours on the paper). How can you tell?             
7. Which way do the arrows point in a food web?             
8. What is the difference between consumers and producers?
9. What are quadrats? What are they useful for?
10. Draw a pyramid of numbers for this food chain:
11. Extension - Choose one of the UK's threatened animals, and explain why it is in dnager of extinction. Suggest a way it could adapt to save itself.
12. Try any of these activities.

Environments

Today we're going to keep looking at how factors in the environment influence which animals and plants can live there. We are also going to start talking about food chains. Complete the following in your books:

1. What environmental factors does a crocodile need to survive?
2. Do plants all need the same soil pH or different ones? Give an example of the preferred soil pH for one plant type:
3. Which three resources do plants compete for?
4. What does a food chain show?
5. Draw a food chain with at least two animals and one plant.
6. Which way do the arrows point in a food chain?
7. What things are at the base of all food chains? Where does all the energy for food chains come from?
8. Is these organisms  producers or consumers?
9. Try this game (you'll get an achievement point if you complete all the questions and finish this!). What is the name for all the food chains in an ecosystem?