Homework Challenge: Science (Core Stability #3)

Science Homework (Year 11):  Core Stability #3

Please answer the following questions in your exercise book (entitled 'Core Stability #3')

Homework    Topic:
Question 1 How did salt deposits end up in Cheshire? C3
Question 2 Prescribing a placebo in a trial for a brain cancer is not very ethical… why? B2
Question 3 A simple name for an object emitting radiation is a __________?? P2
Question 4 Give two lifestyle choices which would reduce the risk of heart disease. B2
Question 5 1000J of energy is put into a motor and we get 850J of useful movement out of the motor. What is the efficiency of the motor? P3
Question 6 Which type of cells remember the antigens of micro organisms, allowing immunity? B2
Question 7 A group of organisms that can breed together to form fertile offspring are belong to the same ____________??? B3
Question 8 How old do we think the Universe is? P1