Tag Archives: Science

Plastic Ocean

I. Name 20 things that are made of plastic.

II. Do you recycle plastic at home? Have you ever found plastic in the sea when you go to the beach in the summer?

III. Watch the video and fill in the gaps with the missing words (up to 1:16)

  • The world produces more than ______________________ tons of plastic every year including billions of plastic bottles and __________________ plastic bags.
  • Plastic is wonderful because it’s ____________________ and plastic is terrible because it is _________________. Almost every piece of plastic ever made is still on the planet in some form or another.
  • Half of all the plastic produced will be used just once and then thrown away. By _______________, when the population explodes to almost _______________ people, it’s expected that plastic production will triple. 
  • The problem with that is that today only _______________ of the plastic that we produce is recycled.The rest ends up in our environment and it’s coating our lands and our oceans like a disease.

IV. Listen to the rest of the video and say if this sentences are true or false (correct the false ones)

T F
1. Garbage thrown away in the USA can make its way to Asia.
2. There is one ocean current that pulls plastic into the center of massive gyres.
3. Seabirds pick up plastic off the surface of the ocean and they feed it to their chicks. 
4.This provides scientific data in terms of where the plastic comes from, its distribution and how it breaks up on the ocean surface.
5. The plastic found in the stomach of the bird accounts for 5% of its body mass. In human terms it is equivalent to having 2 to 3 kilos of plastic inside our stomach.
6. 90% of birds have swallowed plastic at some point in their lives.
7. There is an equivalent of a large garbage truck every hour of every day dumping plastic into the ocean.

V. Discuss. What are the consequences of using plastic?

Student’s worksheet

Teacher’s worksheet

 

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300 Possible Habitable Worlds in the Milky Way Galaxy

I. Check the meaning of these words: 

earth  /  evolve  /  environment  /  evolution  /  unlikely  /  however  /  diversity of life

II. Watch the video up to 0:32 minutes and answer the following question:

Why is the Earth the best planet for us? 

III. Why do you think life can exist on the Earth? In pairs, think about possible reasons.

IV.Watch the second part of the video and complete the reasons why there’s life on Earth with the missing word.

surface                            habitable                      oceans                      atmosphere             magnetic                 cosmic rays                moon                        solar

 

  1. We’re located in the ____________zone of a main-sequence star that doesn’t produce too many killer __________ flares.
  2. We’ve got a thick _______________filled with oxygen and nitrogen that we can breath
  3. The planet is large enough so that it’s still molten in its core with a rotating ball of iron that maintains a planetary _______________ field. This combined with a thick atmosphere protects the surface of the planet from _____________, the worst of ultraviolet radiation from the Sun and deadly solar storms.
  4. We have plate tectonics that constantly recycle material on the _____________ of the planet bringing fresh chemicals up from its interior.
  5. We have a relatively large _____________ which probably keeps our planet more stable in its axial tilt with tides that helped early life-forms transition from the oceans to the land. But not too big a moon.
  6. We have huge ______________that help regulate the climate of the planet moving warm waters to cooler regions to make them more diverse and habitable.

 

IV.In pairs, write the introduction of your article on a Google Doc.

 

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The Disaster that Wiped Out Dinosaurs

I. What do you know about how dinosaurs became extinct?

II. Check the meaning of these words with your partner. Then match the words to the definitions:

 seismic waves   /   ejector cloud.   /    volts of static electricity     /     electrical storm

  1. to strike
  2. to deflect
  3. to shake
  4. to ripple
  5. ground
  6. to attempt
  7. neighbouring
  8. to take shelter
  9. unrelenting
  10. hail
  11. mist
 a. to move in small waves

b. to protect themselves

c. to hit someone or something

d. thin fog

e. the surface of the earth

f. to change direction

g. small, hard balls of ice that fall from the sky like rain

h. to try to do something

i. near or next to somewhere

j. to make quick, short movements from side to side or up and down

k. extremely determined; never becoming weaker

III. Watch this video from the Science Channel that brings to life the asteroid striking earth and the aftermath. Answer the following questions:

  1. To what magnitude does the earth shake when the asteroid strikes?

2. What do animals do when the earth starts shaking?

3. At what speed does the ejector cloud approach?

4. What temperature does the air reach in Mongolia?

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