Shadowing Practice: Science Fair: Gravity and Free Fall - Learn English Speaking with Video
Creating lesson...
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Hey guys, it's me, Samara.
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And I'm Brandon.
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And welcome back to the Adventure Academy Science Fair.
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Hey, Samara.
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I've had a question that's really been bothering me.
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What's that?
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Oh, that's a weird one.
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I was reading about in an article how a scientist in the late 1500s by the name of Galileo, cool name, said that if two objects dropped,
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one heavy and one light, that gravity would pull them down at the same exact speed.
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That's correct, but what's got me confused is this.
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If I drop the rock and the feather at the exact same time, the rock always falls faster.
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So how could Galileo have been right?
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Ah, I see.
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The thing is, when you drop things here on Earth, gravity isn't the only force acting on them.
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While the force of gravity is pulling them down, The air below them is pushing them up.
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Scientists call this force air resistance.
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And back in 1971, astronaut David Scott did the experiment on the moon by dropping a feather and his rock hammer.
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Since the moon has no air, the feather and the hammer hit the ground at the same time, even though the hammer was much heavier.
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That seems like something I really want to try out for myself.
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The eagle has landed.
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Well, we might not be able to do it with the feather and the rock, but we could do it with a book and a piece of paper.
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Go on.
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Okay, hold the book in one hand
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and the paper in the other at the exact same height and drop them at the same time.
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You see?
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The book fell down because it's heavier.
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Not so fast, oh skeptical one.
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Put the paper on top of the book.
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And then see what happens.
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Okay.
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What?
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Whoa, whoa, whoa!
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How did that happen?
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Science.
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When you put the paper on top of the book, the book blocked the air from painting the bottom of the paper.
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This got rid of the air resistance on the paper.
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Okay, you convinced me, but I still would like to do this on the moon.
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Anyway, there you guys go.
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Another cool science mystery solved with the help of experiments.
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See you guys next time.
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Bye!
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Vocabulary and speaking notes for this lesson
This video has 41 sentences and 378 words to shadow. The speech runs for 2:32. The speaker talks at a steady 149 words per minute, a comfortable pace for shadowing. 86% of the words are among the 3,000 most common in English; the rest is worth studying before you start.
Key vocabulary in this video
14 less common words from the video, with pronunciation and meaning:
- feather /ˈfɛðə/ (noun) — A branching, hair-like structure that grows on the bodies of birds, used for flight, swimming, protection and display.
- gravity /ˈɡɹævɪti/ (noun) — Of an activity such as a ceremony, a person's conduct, etc.: the quality of being deeply serious and solemn, especially in a dignified manner; seriousness…
- hammer /ˈhæmɚ/ (noun) — A tool with a heavy head and a handle used for pounding.
- whoa /woʊ/ — Stop (especially when commanding a horse or imitative thereof); calm down; slow down.
- experiment /ɪkˈspɛɹ.ə.mənt/ (noun) — A test under controlled conditions made to either demonstrate a known truth, examine the validity of a hypothesis, or determine the efficacy or likelihood of…
- scientist /ˈsaɪəntəst/ (noun) — One whose activities make use of the scientific method to answer questions regarding the measurable universe. A scientist may be involved in original research…
- confused /kənˈfjuːzd/ (adjective) — unable to think clearly or understand
- mystery /ˈmɪs.t(ə.)ɹi/ (noun) — Something secret or unexplainable; an unknown.
- solve /sɒlv/ (verb) — To find an answer or solution to a problem or question; to work out.
- bother /ˈbɑðɚ/ (verb) — To annoy, to disturb, to irritate; to be troublesome to, to make trouble for.
- convince /kənˈvɪns/ (verb) — To make someone believe, or feel sure about something, especially by using logic, argument or evidence.
- eagle /ˈiːɡəl/ (noun) — Any of several large carnivorous and carrion-eating birds in the family Accipitridae, having a powerful hooked bill and keen vision.
- skeptical /ˈskɛptɪkəl/ (adjective) — Having, or expressing doubt; questioning.
- astronaut /ˈæstɹəˌnɔt/ (noun) — A member of the crew of a spaceship or other spacecraft that travels beyond Earth's atmosphere, or someone trained to serve that purpose.
Phrasal verbs you will hear
- act on (verb) — To act decisively on the basis of information received or deduced.
- back in (verb) — To reverse a vehicle into a space.
- book in (verb) — To check in (to a hotel).
- fall down /fɔl ˈdaʊn/ (verb) — To fall to the ground. To collapse.
- go on /ˈɡoʊˌɒn/ (verb) — To continue in extent.
Pronunciation to watch
The speaker uses 3 contractions and reduced forms, such as I'm, I've, isn't. Say them the short way, as you hear them.
- The “th” sounds: feather /ˈfɛðə/, bother /ˈbɑðɚ/
How to practise with this video
- Listen to the whole video once without speaking and note the words you do not know.
- Shadow it sentence by sentence at normal speed, repeating each one until your rhythm matches the speaker.
- Record yourself and compare with the original, paying attention to words like feather, gravity, hammer.
What is the Shadowing Technique?
Shadowing is a science-backed language learning technique originally developed for professional interpreter training and popularized by polyglot Dr. Alexander Arguelles. The method is simple but powerful: you listen to native English audio and immediately repeat it out loud — like a shadow following the speaker with just a 1–2 second delay. Unlike passive listening or grammar drills, shadowing forces your brain and mouth muscles to simultaneously process and reproduce real speech patterns. Research shows it significantly improves pronunciation accuracy, intonation, rhythm, connected speech, listening comprehension, and speaking fluency — making it one of the most effective methods for IELTS Speaking preparation and real-world English communication.