上一次妹妹的英文課,英文家教與她談論恐龍,因此持續相關話題。另一篇,從美俄的太空科技競賽談起。

 

What's inside a Meteorite
https://www.youtube.com/watch?v=L0bF7Kj5rxI

 

Meteorite Hunter Finds Solar Gold
https://www.youtube.com/watch?v=S4BeLT8Q0ys

 

How Asteroids Really Killed The Dinosaurs - Last Days of the Dinosaurs| 
https://www.youtube.com/watch?v=5wvgvRfgD8w
https://www.youtube.com/watch?v=kpLY0YwMACE

 

Meteors: Crash Course Astronomy #23
https://www.youtube.com/watch?v=TuDfZ2Md5x8

 

Asteroids: Crash Course Astronomy #20
https://www.youtube.com/watch?v=auxpcdQimCs

 

Comets: Crash Course Astronomy #21
https://www.youtube.com/watch?v=yB9HHyPpKds

 

Luis W. Alvarez
https://www.youtube.com/watch?v=TvxiV7Pn9xE


Walter Alvarez and the KT Boundary Story
https://www.youtube.com/watch?v=EVY7vOsges8

 

What Really Killed the Dinosaurs
https://www.youtube.com/watch?v=1iNcRJGzzxs

 

Why Did The DINOSAURS DIE?
https://www.youtube.com/watch?v=h_NOMBz9MDM

 

Earth Beat: Chicxulub Crater - September 27, 2016
https://www.youtube.com/watch?v=vPt6WBOGPJc

 

This Week in Dinosaurs: LEGO Jurassic Park Visitor Center & Chicxulub Crater
https://www.youtube.com/watch?v=sApKSGiWq5U


Dinosaur-Killing Asteroid Crater Drilled to Study Extinction
https://www.youtube.com/watch?v=Xzd1DC93v_I

 

Launch of Sputnik 1 - October 4, 1957
https://www.youtube.com/watch?v=qvPzUAeWZZY

 

Who won the space race? - Jeff Steers
https://www.youtube.com/watch?v=FxpC-8f--xo

 

USA vs USSR Fight! The Cold War: Crash Course World History #39
https://www.youtube.com/watch?v=y9HjvHZfCUI

 

GoPro Awards: On a Rocket Launch to Space
https://www.youtube.com/watch?v=bDoh8zQDT38

 

Space Shuttle Launch NASA Atlantis to the International Space Station
https://www.youtube.com/watch?v=xIoRWIgzvbM

 

How do Smoke Detectors Work
https://www.youtube.com/watch?v=pcn7MDpoZrY

 

P.I. Plug's Smoke Alarm Safety Video
https://www.youtube.com/watch?v=pJ79c_xc4s8

 

Firedrill
https://www.youtube.com/watch?v=MS30v2Cz5x8

 

03 Follow Fire Drill Instructions
https://www.youtube.com/watch?v=uOy-vNETJc8

 

The Carter Family 32: The Fire Drill | Level 3 |
https://www.youtube.com/watch?v=WJtcf_vv6zQ

 

Kids Learn Safety | Fire Escape - Accident Prevention | Safety Knowledge for kids
https://www.youtube.com/watch?v=qM8jW4sRfRk

 

P.I. Plug's Holiday Safety Video
https://www.youtube.com/watch?v=plgjUCqXSGI

 

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