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Question 3.4   What do valves do? (1)

Question 2.2 Steve was cooking some chicken.   First, he took some fresh, raw (uncooked) chicken from the fridge and cut it up on the chopping board and put it in an air tight box. Then, he cooked some more fresh chicken from the fridge and, when it was cooked, cut it up on the same chopping board. Later he was very sick because of a microorganism called salmonella which had got into his stomach. Salmonella is found in chicken but is killed by hot temperatures. How did the salmonella get into his stomach? Give as much detail as you can. (2)

Question 1.6.2   Use the different leaves in the previous question and design a classification key to show how you will classify these leaves. Use the following checklist to guide you: Started with one question. Used different questions to identify the leaves. Ended with one classification for each leaf. (4)     Upload Image Here  

Question 3.8.2   Use the graph in Question 3.8.1 to help you answer the question.   What happened to Jim’s heart rate in the first five minutes that he was running? Give an explanation for your answer. (2)

Question 3.2   The diagram below shows a section through the respiratory system (the lungs).   Click on the button below to open the picture of the lungs.     From which labelled part is oxygen absorbed into blood? [ans1] (1)

Question 3.5   When blood leaves the heart and is pumped around the whole body, what is it carrying? [ans1] (1)

Question 1 Answer the following questions regarding classification:

Question  1.6.1   Leaf shape is one way to identify plants. The pictures show four different leaves. Study the leaves and answer the questions that follows.   Number Picture Name of leaf 1   Horse Chestnut 2   Bay 3   Monstera 4   Sycamore     Click on the button below to open the picture of the different leaves.   Choose the correct answer.   Which two leaves are the most similar?   a.  1 and 2 b.  2 and 3 c.  1 and 4 d.  3 and 4 (1)

Question 3.7   Stephan is wondering how blood flows through the heart. Explain to Stephen how this happens. Remember to use the correct vocabulary and all the correct parts. (5)

Question 2.1   Choose the correct answer. Which piece of equipment would you use to see bacteria? Letter Name of equipment Picture a. Binoculars   b. Microscope   c. Mirror   d. Telescope     Click on the button below to open the picture of the instruments.   a.   binoculars b.   microscope c.   mirror d.   telescope  (1)