This document outlines an introductory science lesson on evolution and biodiversity. It includes:
1. An opening prayer, introduction and video clip to introduce the topic of evolution.
2. Two classroom activities where students draw fossils in their proper eras/periods and determine fossil ages using carbon dating. This assess students' understanding of the geologic timescale and dating fossils.
3. A discussion of key concepts like the fossil record, comparative anatomy and genetic evidence for evolution, how fossils are formed and dated, and the geologic timescale.
4. Concluding reflections on adapting to environmental change and a quote about personal growth and evolution.
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2. B. KUMUSTAHAN
HI! I’M TEACHER HONEYLYN..
I’M YOUR SCIENCE TEACHER.
I’M SO EXCITED TO BE WITH YOU IN THIS NEW
NORMAL FACE TO FACE CHALLENGE…
3. C. VIDEO CLIP https://www.youtube.com/watch?v=8M37RvWcXQs
4. Does evolution really exist? What are
your proofs? Do you believe that
human evolve from ape? Then who
made us humans?
5. Quarter 3: MODULE 3 Grade 10 Science
BIODIVERSITY AND EVOLUTION
Evidences of Evolution
MELC: Explain how fossil records, comparative anatomy,
genetic information provide evidence for evolution.
Competency Code: S10LT-IIIf-39
TOPIC
6. Knowledge- Identify the era and period a certain fossil/s
belong. Skill- Illustrate the fossils of the following
organisms in the era and period where they
belong.
Determine the age of a fossil.
Attitude- Appreciate the relevance of knowing the age
of a fossil.
Recognize the existence of different species on
earth.
D. OBJECTIVES
7. Activity 1A- Where Do I Belong?
Objective:
Draw and place the fossils or organisms in its proper Era
and Period.
Materials:
• paper
• Pen
• The Geologic Time Scale
2. ACTIVITY ( 15 MINS)
8. Activity 1A- Where Do I Belong?
Directions:
Try to place or draw the fossils of the following organisms
in the Era and Period where they belong. You may use
the Geologic Time Scale as your reference.
2. ACTIVITY ( 15 MINS)
9. Trilobite An invertebrate, it lived in a
shallow marine environment
during Ordovician and Silurian
periods.
Crinoid Stem Crinoids look like plants but are
actually animals related to our
modern day starfish. They belong
to Phylum Echinodermata and
lived during the Triassic Period.
Dinosaur
Bone
Dinosaurs or giant reptiles ruled
the earth during the Jurassic
Period under Mesozoic Era.
Vascular Pant This fossilized leaf is once part of
an early vascular plant during the
Carboniferous Period.
Era Period Organism
Cenozoic Recent
Quaternary
Tertiary
Mesozoic Cretaceous
Jurassic Dinosaurs
Triassic Crinoids
Paleozoic Permian
Carboniferous Vascular
Plants
Devonian
Silurian Trilobites
Ordovician Trilobites
Cambrian
Google.com
10. Q1. Analyze the table above. Which is assumed to be the oldest
organism? Why do you think so? What is the probable age of
the fossil?
Q2. In what era can you possibly find the most recent fossil? Why
do you say so?
Q3. Do you think there are organisms that lived during the
Cambrian Period? Explain your answer.
Q4. When do you think did the present day humans first appeared
on Earth?
Q5. Describe how organisms arranged in the table.
11. Activity 1B- What’s My Age?
Objective:
Determine the age of fossil.
Materials:
• paper
• Pen
12. Directions:
Use the information below to answer the age of the
fossils.
One way scientists determine the age of fossils is by checking
the amount of radioactive carbon-14 in the fossil. Carbon-14
breaks down or decays to form nitrogen-14; the rate of this decay
is constant e.g. half of the remaining Carbon-14 breaks down every
5730 years. Use this information and compute the age of fossils on
the next page.
13. • Fossils Comparison of Carbon-14 Age of fossil
and Nitrogen-14 in sample in years
___________
___________
____________
C-14 N-14
___5730__
C-14 N-14
_5730____5730___
C-14 N-14
_5730__5730__________5730_______
14. Q6. What is the oldest fossil?
Q7. Why is it important to know the age of the fossil?
15. Check your own work.
•Always remember the saying “Honesty is the best policy”.
•
3. ANALYSIS (10 MINS.)
A. CHECKING
17. Trilobite An invertebrate, it lived in a
shallow marine environment
during Ordovician and Silurian
periods.
Crinoid Stem Crinoids look like plants but are
actually animals related to our
modern day starfish. They belong
to Phylum Echinodermata and
lived during the Triassic Period.
Dinosaur
Bone
Dinosaurs or giant reptiles ruled
the earth during the Jurassic
Period under Mesozoic Era.
Vascular Pant This fossilized leaf is once part of
an early vascular plant during the
Carboniferous Period.
Era Period Organism
Cenozoic Recent
Quaternary
Tertiary
Mesozoic Cretaceous
Jurassic Dinosaurs
Triassic Crinoids
Paleozoic Permian
Carboniferous Vascular
Plants
Devonian
Silurian Trilobites
Ordovician Trilobites
Cambrian
Google.com
18. Q1. Analyze the table above. Which is assumed to be the oldest
organism? Why do you think so? What is the probable
age of the fossil?
•
19. Q1. Analyze the table above. Which is assumed to be the oldest
organism? Why do you think so? What is the probable
age of the fossil?
• The oldest organism in the list are the trilobites. They lived
during the Paleozoic Era, in the Silurian and Ordovician
period. They can be 600 million years old.
20. Q2. In what era can you possibly find the most recent fossil?
Why do you say so?
21. Q2. In what era can you possibly find the most recent fossil?
Why do you say so?
• Cenozoic Era, the recent fossil may be found in the uppermost
layer of the rock.
22. Q3. Do you think there are organisms that lived during the
Cambrian Period? Explain your answer.
23. Q3. Do you think there are organisms that lived during the
Cambrian Period? Explain your answer.
• Yes. Rock layers in the Cambrian period also have
traces/imprints of mollusks that lived during that time. Most
of them were invertebrates.
24. Q4. When do you think did the present day humans first
appeared on Earth?
25. Q4. When do you think did the present day humans first
appeared on Earth?
• Cenozoic Era, the fossil of the first human was found during
this Era.
27. Q5. Describe how organisms arranged in the table.
• Organisms are arranged from invertebrates to vertebrates,
from simple organisms to complex organisms and from
unicellular to multicellular.
28. • Fossils Comparison of Carbon-14 Age of fossil
and Nitrogen-14 in sample in years
_____
_____
_____
C-14 N-14
___5730__
C-14 N-14
_5730____5730___
C-14 N-14
_5730__5730__________5730_______
29. • Fossils Comparison of Carbon-14 Age of fossil
and Nitrogen-14 in sample in years
5730
11460
17190
C-14 N-14
___5730__
C-14 N-14
_5730____5730___
C-14 N-14
_5730__5730__________5730_______
31. Q6. What is the oldest fossil?
• The age of the oldest fossil is 17 190 years old, a petrified wood.
32. Q7. Why is it important to know the age of the fossil?
33. Q7. Why is it important to know the age of the fossil?
• The age of the fossil will determine the particular Era or Period
the organisms existed on earth.
35. EVOLUTION
• the change in inherited traits over
successive generations in
populations of organisms.
• this allowed organisms to adapt
and survive in their environment.
36. FOSSIL RECORDS
• Fossil records are traces of organisms that
lived in the past and were preserved by natural
process or catastrophic events.
• Fossils document the existence of now-extinct
past species that are related to present-day
species.
37. FOSSIL RECORDS
Fossils are examples of materials that paleontologists use
in studying evolution; they are traces of organisms that
lived in the past and were preserved by natural
processes or catastrophic events in rocks, peat, or ice;
some fossils are remains of organisms, that include
bones, shells, teeth and also feces (coprolite). Through
time, the fossil-bearing rocks were exposed by
movement of the Earth's surface, by weathering, or dug
out by paleontologists.
41. FOSSIL RECORDS
Compression fossils are
animal or plant tissues
preserved in sedimentary rock
and is formed with more
organic material.
COMPRESSIONS
42. FOSSIL RECORDS
The age of rock is compared
to the other rock layers
How are the ages of fossils determined?
1. Relative Dating
43. FOSSIL RECORDS
Method used to determine the
age of rocks using the decay
of radioactive isotopes of
Carbon-14 which is present in
rocks when the organism died.
How are the ages of fossils determined?
1. Radioactive Dating
46. ABSTRACTION- 3 (MINS.)
Ask two (2) students to describe a fossil.
Let them enumerate the ways of
determining the age of a fossil and ask why
is it important to know the age of a fossil.
47. ABSTRACTION- 3 (MINS.)
Ask two (2) students to describe a fossil.
Let them enumerate the ways of
determining the age of a fossil and ask why
is it important to know the age of a fossil.
The age of the fossil will determine the particular
Era or Period the organisms existed on earth.
48. ABSTRACTION- 3 (MINS.)
Ask two (2) students to describe a fossil.
Let them enumerate the ways of
determining the age of a fossil and ask why
is it important to know the age of a fossil.
49. ABSTRACTION- 3 (MINS.)
* Fossils- are traces of organisms that lived in the past and
were preserved by natural processes or catastrophic events
such as bones, shells, teeth and feces.
* Fossils are mostly found in sedimentary rocks.
* Paleontologist- determine the age of the fossils through
their positions in the sedimentary rocks.
* The age of a fossil can be determined through radioactive
and relative dating.
50. APPLICATION-2 (MINS.)- HOME ACTIVITY
Reflect on this situation:
You have been given an opportunity to travel in the future for several
hundred years. Use your imagination to think of organisms that might be
living on earth in that particular time, considering the environmental
disturbances, calamities, and changes that occurred. How do they survived?
How do they adapt to their changing environment? List all the organisms
that you have encountered in your science notebook and describe your
experiences meeting them. Create a comic strips out of your imagination in
a creative manner and post it in any social media websites (fb, youtube,
Instagram) to entertain audiences.
51. SCORING RUBRIC
4 3 2 1
Craftmanship The product is exceptional
attractive in terms of
neatness. Well-constructed
and not messy
The product is
exceptional attractive
in terms of neatness.
Good construction
and not messy.
The product is
acceptably attractive
though it may be a bit
messy.
The product is
distractingly messy
Creativity Product is exceptionally
creative. A lot of thought
and effort was used
Product is creative
and a good amount
of thought was put
into decorating
Product is creative
and some thought
was put into
The product does not
reflect any creativity
Originality Exceptional use of new
ideas and originality to
create concept.
Good use of new
ideas and originality
to create concept.
Average use of ideas
and originality to
create concept.
No use of new ideas
and originality to
create a concept.
Persuasiveness The product uses
exceptional and proper
words to entertain social
media audiences
Good use of words
to entertain social
media audiences
Slightly use of proper
words to entertain
social media
audiences
No use of proper
words
52. ASSESSMENT-5 (MINS.)
Direction: Answer the given questions briefly in ½ sheet
of intermediate paper.
1. Where can most fossils be found?
2. Describe evolution in 2-4 (two to four) sentences.
3. How important is determining the age of a fossil?
53. Using the internet or any media, look for the definition of
biodiversity, stability and adaptation and answer the following
questions:
1. What are the types of biodiversity?
2. How does the value of biodiversity being classified?
Write your answers on a ½ crosswise of an intermediate paper.
ASSIGNMENT-1 (MIN.)
54. CONCLUDING ACTIVITY-1 (MIN.)
Life is about evolving. Don't stay in a situation that's not
helping you grow mentally, spiritually, and emotionally.
(Unknown)
Evolution Quote!
