Across
- 1. how many steps are needed to light a Bunsen burner
- 2. the last step in lighting a Bunsen burner is to _ the air hole
- 5. the third step in the scientific method
- 7. the gas required in the fire triangle
- 9. apparatus that holds liquids and can be heated over a flame
Down
- 1. the instrument used to measure time
- 3. branch of science that studies how nature works
- 4. a scale is the instrument used to measure _
- 6. the colour of the safety flame
- 8. a wire mesh placed on top of the tripod