1. Is it valid?

2. Table of results pH of liquid to water cotton wool Measurement of cress seeds (cm) 12 3 4 5 6 7 8 9 10 Average 410000000000.1 52121.5 140001.2 60.81.61.1 0000000.46 752.5410000001.25 80.50.40.200000000.11 900000000000

3. Graph

4. Conclusion Up to 6, the pH helps the cress plants to grow

5. Table of results Number of pupilsHeight in cms 2 160 4 165 7 170 6 175 4 180 1 185

6. Graph of results

7. Conclusion The greater the number of pupils the more the height changes

8. Table of results Length of wire (cm) Current (amps) 1 2 Average 5 3.55 3.54 3.545 10 3.50 3.49 3.495 15 3.09 3.07 3.08 20 2.65 2.63 2.64 25 1.76 1.73 1.745 30 1.57 1.59 1.58

9. Graph

10. Conclusion The longer the wire the less the value of the current

11. Results PlantGroup 1Group 2Group 3Group 4Average % Clovers %25 0 0 0 6.25 Grasses %5015105031.25 Leaves %2550 2036.25 Barley grass % 025 5 58.75 Thistles % 0 1 0 00.25 Thorns % 0 05 01.25 Weeds % 0 0 0102.5 Soil % 0 930 912

12. Results

13. Conclusion The plants with the biggest leaf areas covered the most ground

14. Results chart Height of ramp (cm)Speed (m/s) 5 1.2 10 1.5 15 0.7 20 2.1 25 2.4 30 2.7 35 3.0 40 3.3

15. Graph of speeds reached

16. Conclusion The speed of the car always increases if the ramp is made higher