The diagrams show some different seeds. Copy and complete the table by naming the type of seed dispersal. Then describe the features that allow each seed to be dispersed in this way. The first one has been done for you.

Type of seed	Type of seed dispersal	Features of seed that help dispersal
dandelion	wind	The seed has a parachute that catches the wind
Sandbur
tomato

 

 

 

Complete the labels in the diagram using these words:

The sea bean grows on the banks of rivers in Africa, Australia and South America. Its seeds form inside large woody pods. The pods drop into the river and float away.

Name the type of seed dispersal used by the sea bean. (Water/ Wind/ Animals)

Moninder wants to find out the best temperature for mustard seeds to germinate. He uses three Petri dishes. Each dish has a layer of moist tissue paper covered with 30 mustard seeds. Moninder puts one dish in a warm cupboard, one in a cool cupboard and one in a refrigerator. He waters all of the seeds regularly for 21 days. His results for the first four days are shown in the table.

How many seeds had germinated by day 4 in the warm cupboard?

Moninder wants to find out the best temperature for mustard seeds to germinate. He uses three Petri dishes. Each dish has a layer of moist tissue paper covered with 30 mustard seeds. Moninder puts one dish in a warm cupboard, one in a cool cupboard and one in a refrigerator. He waters all of the seeds regularly for 21 days. His results for the first four days are shown in the table.

What conclusion can you draw from Moninder's results? 

The diagram shows the flower of a lily plant. This lily is pollinated by insects.

Imran has three different seeds, each with a different shape. He wants to investigate which seed will be dispersed over the furthest distances. He drops each seed from a height of 2 metres and measures how far the seed travels horizontally.

How could lmran make his results more accurate?