Akoranga 6 Mahi Tuatahi

1. Collect a crossword as you come in
2. Glue it into your book
3. You have 10min to complete the crossword!

Ngā Whāinga Ako

• Be able to describe the products of combustion
• Be able to perform the pop, limewater and lighted splint gas tests
• Be able to determine the products of combustion through experiment

Write the date and ngā whāinga ako in your book.

Combustion

• Combustion is a very predictable formula. Every time something is burned, water is produced, along with a mixture of carbon dixoide, carbon monoxide and carbon.
• It can be a chain reaction

Collect a products of combustion sheet and glue it into your exercise book!

Testing for Water

• In fact we can use cobalt (II) chloride strips
  • The paper goes pink in the presence of water
  • It can be dehydrated and re-used

Fill out the water test section of your products of combustion sheet!

Rangahau/Research

1. In pairs, try and recall from Y9, the tests for carbon dioxide, oxygen and hydrogen gas.
2. Get out a device and research the gas tests, just to be sure.
3. Add notes and diagrams to your Products of Combustion sheet.

Whakamātau

• Open to page 7 of your workbook: What is produced when a candle burns?
• Read through the whakamātau carefully
• Come up to the demo bench
• Form into groups of 3-5 and collect the required equipment
• Conduct the whakamātau (20min)
• Clean up your station