Apply what you have learned about conductors and insulators to explain why and how the graphite/hexadecane system might be used as a temperature sensor. This temperature sensor should be capable of triggering an electrical alarm if the air temperature drops below a certain threshold temperature.

total distance/total time

(85 + 82)/(5+3)

167/8

20 just over

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.