Evolution And Classification
Chapter Name : Heredity And Evolution |
Sub Topic Code : 103_10_09_05_02 |
Topic Name : Evolution And Classification |
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Sub Topic Name : Fossils |
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Introduction
Parts of the body or whole of living organisms preserved over the years are called fossils.
Pre-Requisites:
Tracing evolutionary relationships.
Activity:
Visit an archeological museum to see all the fossils. Understanding what fossils are.
Real Life Question:
How do we estimate how many years back the organisms existed by looking at the fossil?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Isotopes of an element | Variants of an element having the same number of protons but different number of neutrons. |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Skeleton of bats and bird’s wing, | Observe analogous organs |
Places to visit :
museum
Practical examples around us
| Examples | Explainations |
|---|---|
| 65-million-year-old mega flora fossils were recently discovered on the left bank of the Mhadei river in Khotode village of Sattari taluka. |
What you learn in Theory:
How can fossils reveal about the life that existed on earth millions of years ago?
What you learn in Practice:
Some traces of living organisms can be preserved over the years in the form of fossils. Life vegetables can be preserved by pickling.