Page 6 - Science E-Book Prep.3 2024-2025 1st term_Neat unit 3,4

Science Department
Prep.3

Big bang:

Steps:
1. Bring some flour and mix it with some water
andsome of the bread yeast.
2. Mix the ingredients well to make bread dough.
3. Insert some raisins in the dough.
4. Leave the dough to ferment in a warm
environment.

Observation:
1. When the dough expands, the grains of raisins become apart from each
other.
2. The continuous expansion of the dough resembles the expansion of
theuniverse.
Similarly, the separation of the grains resembles the separation of the
galaxies from each other.

Conclusion:
The universe is in continuous expansion.

First Term 47