Germination

OB58 investigate the conditions necessary for germination

Germination is the name given to seeds coming to life.

What do you think they need to grow ?

Where do seeds usually grow, what do they get there?

Events in Germination

1. Seeds absorb water

2. Food supply is started to be used

3. Radicle grows and bursts out through the testa.

4. Plumule emerges above ground and new leaves form.

Title

To Investigate the conditions necessary for seeds to germinate

Apparatus

test tubes, test tube rack, cress seeds cotton wool, spatula, oil, access to boiled water, calcium chloride

Method

Diagram

Safety Concerns

Calcium Chloride is an irritant,

particularly on moist skin. Dry calcium chloride reacts exothermically when exposed to water. Burns can result in the mouth and esophagus if humans or other animals ingest dry calcium chloride pellets.

Results / Observations

Test Tube A Grew / Did Not Grow What did test tube A lack ? What does this mean ?

Test Tube B Grew / Did Not Grow

Test Tube C Grew / Did Not Grow What did test tube C lack ? What does this mean ?

Test Tube D Grew / Did Not Grow

Test Tube E Grew / Did Not Grow What did test tube E lack ? What does this mean ?

Conclusions

Seeds require water, Oxygen and warmth in order to germinate.

Light is not necessary for seeds to germinate

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