Discuss these questions:

1. Do you know which animals hatch? (bring forth young from eggs)

2. What was first: chicken or an egg?

3. Do you think that the tapping sound (or music in hatcheries for poultry) can speed up the process of hatching by decreasing the overall time for incubation?

Posledná zmena: streda, 2 februára 2011, 11:47