2. Starter: Here are the answers. What were the questions? 1.Acid 2.Alkali 3.Neutral 4.Irritant 5.Red litmus 6.Blue litmus

3. Starter Re-arrange the method for making your own indicator Cut out the steps and stick them into your book in the correct order

4. Which Vegetable Makes the Best Indicator? Objectives: To plan an investigation into using vegetables as indicators Outcomes: Lvl 5 – I can identify significant variables in investigations & select which to investigate. I can describe a clear method for my investigation. I can explain why certain pieces of equipment are more appropriate than others.

5. Hypothesis An idea that has yet to be tested The colour of the vegetable changes how good it is at being an indicator of acids and alkalis

6. Independent Variable The thing we are changing in our investigation My independent variable is…

7. The Vegetables Used

8. Dependent Variable The thing we are changing in our measuring My dependent variable is…

9. Control Variables The things we are keeping the same My control variables are…

10. Equipment Make a list of the equipment you used using the equipment wall What was each piece used for? The equipment I will need:

11. Which Vegetable Makes the Best Indicator? Objectives: To plan an investigation into using vegetables as indicators Outcomes: Lvl 5 – I can identify significant variables in investigations & select which to investigate. I can describe a clear method for my investigation. I can explain why certain pieces of equipment are more appropriate than others.

12. Method On the next slide is the method used for making red cabbage indicator

13. water Step 1 Chop up the cabbage. Step 5 Carefully pour the dye solution into a bottle for storage. This can now be used as an indicator. cabbage conical flask Step 2 Put the cabbage into a conical flask. Step 3 Half - fill the conical flask with water. Step 4 On a tripod and gauze, boil the mixture for 4 minutes. Next, allow the apparatus to cool down. gauze heat dye solution tripod bottle dye solution Making an indicator from cabbage

14. Method Cut out the steps of the method and stick them into your book in the correct order

15. Which Vegetable Makes the Best Indicator? Objectives: To plan an investigation into using vegetables as indicators Outcomes: Lvl 5 – I can identify significant variables in investigations & select which to investigate. I can describe a clear method for my investigation. I can explain why certain pieces of equipment are more appropriate than others.

16. Risk Assessment HazardRiskControl Measure Bunsen Burner Hot Water Breaking a test beaker

17. Results Table