Question

Write a method to separate healthy seeds from the damaged seeds

Answer 1

Answer:

Put the seeds in water the ones that sink are the healthy seeds and the ones that float are unhealthy because they have holes in them therefore they are able to float.

Answer 2

Procedure

(1) Take a beaker and fill half of it with water.

(ii) Put a handful of wheat seeds in the beaker.

(iii) Stir the water and leave the set-up standing for some time.

(iv) Observe the seeds carefully.

Observation

Some seeds float on water while others sink and settle at the bottom.

Conclusion

The floating seeds are damaged or unhealthy seeds while the seeds that settle at the bottom are good and healthy seeds. We should use the seeds that are settle at the bottom.

Precautions

(1) Stir the seeds carefully.

(i) Handle the glassware carefully.