CD3 M71 - August 25, 2017
LESSON 1
Explaining Natural Phenomena
Our ancestors did not have the modern knowledge and technology we have today. As such, they used superstitions and their belief in unknown beings as explanation for natural occurrences. These stories and myths have made our culture more colorful. However, many of these beliefs about natural phenomena are false and misleading and we need to know their scientific explanation to understand them better. Up to now, some people still believe that natural phenomena are caused by supernatural beings like fairies, elves, gods, spirits and many others.
==========================================================
LESSON 2
Cause and Effect in Nature
There is always a scientific and logical explanation for natural phenomena such as rain or an eclipse. There is a cause that leads to a certain effect. The cause, effect and the resulting event that results are all observable and verifiable through scientific means.
Cause | Effect |
The combined gravitational pull of the sun and moon is strongest during a full moon. The force of gravity affects the bodies of water here on Earth. it also affects the water within living things | It is ideal to plant during a full moon because the crops easily absorb water |
The moon is the one and only satellite revolving around the Earth. Sometimes, the moon lines up exactly with the Earth and sun | An eclipse occurs |
Because of the sun's heat, some water from rivers, lakes, streams, wetlands, and ocean evaporates. This becomes vapors that condense into clouds | When the clouds can no longer hold the moisture, it precipitates and falls to the ground as rain |
Commenti