Across
- 3. the planet in our solar system closest to the sun
- 4. what most equipment is made from
- 5. the genetic code
- 7. the name of the first female scientist to be awarded a Nobel prize
- 8. an example of an arthropod
- 11. the gaseous state of water
- 12. the name of the scientist who devised the formula e=mc2
- 14. test tubes are held in this item
- 15. how close a measurement is to the true
- 17. these type of shoes must be worn when experimenting
Down
- 1. the first element on the periodic table
- 2. a gas our body needs
- 6. the kingdom humans belong to in classification
- 7. the branch of science that deals with the behaviour of matter
- 9. all experiments need to be performed this way
- 10. the term used to describe the hard shell of an organism
- 13. these structures send electrical messages around the body
- 16. the basic unit of life
- 18. the name of the scientist that proposed natural selection