Plant responses

Question 1

Aim

Answer 1

Investigate the effect of light or gravity on the growth of newly germinated seedlings

Question 2

Step one

Answer 2

Pour a fixed volume of water into three petri dishes and add cotton wool

Question 3

Step two

Answer 3

Place 10 seeds in each Petri dish

Question 4

Step three

Answer 4

Place the petri dishes in a warm location to allow the seeds to germinate

Question 5

Step four

Answer 5

Place one petri dish in full sunlight by the window
Place another in partial sunlight
Place a third in darkness in a cupboard

Question 6

Step five

Answer 6

Use a ruler to measure the height of each seedling every day for at least a week

Question 7

Step six

Answer 7

Record in a table and find the mean height of seedings each day