Years 5&6

5. the degree or intensity of heat present in a substance or object.
6. power derived from the utilization of physical or chemical resources especially to provide light and heat or to work machines.
9. to prevent passage of and cause to change direction
11. cause (something) to pass on from one person or place to another
13. eliminated or discarded as no longer useful or required
14. a substance that flows freely but is of constant volume
15. a loose granular substance

1. allowing light but not detailed shapes, to pass through
2. a thread or a structure or object resembling a thread
3. many of these compounds are _______________ reactive
4. not able to be seen through
7. the quality of being hot; high temperature
8. very quickly; at a great rate
10. relating to heat
12. a hard, unreactive colourless compound which occurs as the mineral quartz and as a principal constituent of sandstone and other rocks.