Germination experiment - LC Biology

What is the aim of this experiment?

To investigate the effect of water, temperature and oxygen on germination

Materials needed for experiment

• Seeds (radish)

• Distilled water

• Anaerobic jar

• 4 Petri dishes

• Incubator

• Fridge

• Cotton wool (absorbent)

• Labels

What should you set each Petri dish with?

Absorbent cotton wool inside

What should you label the 4 dishes?

A, B, C, D

What should you do to dish A

Leave the cotton wool dry

What do you do to the cotton wool in the other dishes?

Wet the cotton wool

What is the result of keeping the cotton wool dry in one Petri dish

The seeds in Petri dish A lack water

How many seeds should you place in each dish?

10

What should you do to dish B

Place Petri dish B in the fridge

What is the result of placing one Petri dish in the fridge?

The seeds in Petri dish B lack a suitable temperature

What should you do to dish C?

Place Petri dish C into an anaerobic jar, activate and seal

What is the result of placing one dish into an anaerobic jar?

The seeds in Petri dish C lack sufficient oxygen

What temperature should the incubator be at

25 degrees Celsius

Which dishes should you place into the incubator?

A, C and D

How often should you check on the dishes?

Every 2-3 days