Is it valid?

Table of results pH of liquid to water cotton wool Measurement of cress seeds (cm) Average

Graph

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

Table of results Number of pupilsHeight in cms

Graph of results

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

Table of results Length of wire (cm) Current (amps) 1 2 Average

Graph

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

Results PlantGroup 1Group 2Group 3Group 4Average % Clovers % Grasses % Leaves % Barley grass % Thistles % Thorns % Weeds % Soil %

Results

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

Results chart Height of ramp (cm)Speed (m/s)

Graph of speeds reached

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