1. 3/10 & 3/ th Grade Agenda
Collect HW: Reading & Notetaking p
“Back to School” and “Open House” Video on YouTube.com
Geological Time Scale
Classwork: Chap 8 Study Guide
Video: Walking w/ Monsters before Dinosaurs
Textbook Reading:
HW: Reading & Notetaking p
Reminder: Chap 8 Test on 3/15 & 3/16

2. Reflection
Prompt: What killed the dinosaurs? Which animal is the closest living relative of the dinosaur?

3. Open House & Back to School Videos on YouTube.com
Search for “CcmsMrKim”
You can download a copy of the video by using the “YouTube DownLoader” Program.
Search for “YouTube Downloader Cnet” in Google

4. Marble Race Lab 3/17 & 3/18 Up to 4 students per team
Project has to be completed in class (about 1 hour)
I’ll provide the marble, masking tape and construction paper.
You can bring other extra materials.
Contest will be judged on the how creative it is.

5. Marble Race Lab 3/17 & 3/18
5 Points if you participate in the lab with your best efforts.
5 Points Extra Credit for the most interesting working design
5 Points Extra Credit for the longest working track
5 Points Extra Credit for the slowest speed

6. Speed = Distance / time What is the speed of this marble?
Marble race track is 100cm. The time it took for the marble to race down was 10 seconds.
100 cm /
10 secs =
10 cm/sec

7. Speed = Distance / time What is the speed of this marble?
Marble race track is 100cm. The time it took for the marble to race down was 20 seconds.
100 cm /
20 secs =
5 cm/sec

8. Speed = Distance / time What is the speed of this marble?
Marble race track is 100cm. The time it took for the marble to race down was 5 seconds.
100 cm /
5 secs =
20 cm/sec

9. When was the earth created?
Earth was formed about 4.6 billion years ago

10. What happened during Precambrian Time?
Earth was formed about 4.6 billion years ago
Earliest forms of life began about 3.5 billion years ago. They were single celled organism similar to bacteria
About 2.5 billion years ago, organisms started to use the process of photosynthesis. This increased the amount of oxygen in the atmosphere.

11. Development of Atmosphere

12. What happened during Paleozoic Era 544 – 245 Million Years ago?
Cambrian Explosion: At the beginning of the Paleozoic Era, a great number of different kinds of organisms evolved.

13. Cambrian Period – Explosion of Life in the sea (544 Million Years ago)

14. Devonian Period – Animals invade the land (408 Million Years Ago)

15. Permian Period (286 Million Years Ago)

16. End of the Permian Period, there was a mass extinction – (245 Million years ago)
95% of life in the oceans disappeared
What do you think might have cause the mass extinction?

17. Mesozoic Era – Triassic, Jurassic Cretaceous Period (245 – 66 Million Years ago)

18. End of Cretaceous Period, there was another mass extinction (66 Million years ago)
Where did the asteroid hit?
Asteroid hit near southeastern Mexico (Yucatan Peninsula)
When the asteroid hit Earth, the impart threw huge amount of dust and water vapor into the atmosphere

19. Which animal is the closest living relative of Dinosaurs?
Birds are considered to be closest relatives of dinosaurs

20. Cenozoic Era – Age of Mammals (65 Million Years to Present)