Our Planet Earth

by Vocafy Verificado

Inglês (EUA) A2 15 perguntas Science Nature & animals

Explore Earth's continents, oceans, and weather, from familiar facts to surprising discoveries.

1. 1. Escolhe a resposta correta.

   What does ocean water usually taste like?

   • Sweet
   • Salty
   • Sour

   Show solution

   • Salty

   Ocean water contains salt. Rivers carry small amounts of salt from rocks into the sea.

2. 2. Escolhe a resposta correta.

   Which continent is Brazil on?

   • South America
   • Europe
   • Asia

   Brazil is on the same continent as Argentina.

   Show solution

   • South America

   Brazil is the largest country in South America. Much of the Amazon rainforest is there.

3. 3. Preenche o espaço em branco.

   On a very cold day, soft white flakes of ___ can fall from the clouds.

   • rain
   • fog
   • snow

   It can cover the ground in white.

   Show solution

   On a very cold day, soft white flakes of snow can fall from the clouds.

   Snowflakes have different shapes, but they usually have six sides or six arms.

4. 4. Escolhe a resposta correta.

   Which ocean is the largest?

   • The Atlantic Ocean
   • The Pacific Ocean
   • The Indian Ocean

   It lies between Asia and the Americas.

   Show solution

   • The Pacific Ocean

   The Pacific Ocean covers a larger area than all of Earth's land put together.

5. 5. Escolhe a resposta correta.

   What makes a place a desert?

   • Hot weather all year
   • Sand covering all the ground
   • Very little rain or snow

   Think about how much water falls from the sky.

   Show solution

   • Very little rain or snow

   Some deserts are cold, and some have more rock than sand. Deserts are dry, not always hot.

6. 6. Escolhe a resposta correta.

   When it is summer in Canada, what season is it in Australia?

   • Winter
   • Summer
   • Spring

   Canada is north of the equator. Australia is south of it.

   Show solution

   • Winter

   The northern and southern halves of Earth have opposite seasons. Christmas is in summer in Australia.

7. 7. Escolhe a resposta correta.

   Which continent is mostly covered by thick ice?

   • Africa
   • Antarctica
   • Europe

   The South Pole is there.

   Show solution

   • Antarctica

   Antarctica's ice lies on land. In contrast, much of the ice around the North Pole floats on the ocean.

8. 8. Preenche o espaço em branco.

   Clouds are made of tiny drops of water or small pieces of ___.

   • salt
   • rock
   • ice

   High above the ground, the air can be very cold.

   Show solution

   Clouds are made of tiny drops of water or small pieces of ice.

   A cloud can contain ice even when the weather on the ground is warm.

9. 9. Escolhe a resposta correta.

   A mountain under the ocean grows until its top rises above the water. What does the top of the mountain become?

   • An island
   • A lake
   • A valley

   Water surrounds this new land.

   Show solution

   • An island

   Some islands form when hot rock comes up from inside Earth and builds an underwater mountain.

10. 10. Escolhe a resposta correta.

    The ocean rises and falls along a beach each day. What mainly causes this?

    • The heat of the sun
    • Rain falling over the land
    • The pull of the moon

    Think about the nearby object that moves around Earth.

    Show solution

    • The pull of the moon

    These changes are called tides. The sun also pulls on ocean water, but the moon has a stronger effect on tides.

11. 11. Preenche o espaço em branco.

    The sun warms ocean water. Some water becomes a gas and rises into the ___.

    • sand
    • air
    • ice

    This is the space above the ocean.

    Show solution

    The sun warms ocean water. Some water becomes a gas and rises into the air.

    This change is called evaporation. The salt stays behind when ocean water becomes a gas.

12. 12. Escolhe a resposta correta.

    Two places are on the same mountain: one near the bottom and one near the top. Which is usually colder?

    • The place near the top
    • The place near the bottom
    • Both are always equally cold

    Think about where snow often stays on a mountain.

    Show solution

    • The place near the top

    Air usually gets colder as you go higher. This helps explain why some mountains have snow even in summer.

13. 13. Escolhe a resposta correta.

    During a storm, why do we usually see lightning before we hear thunder?

    • Thunder starts several seconds after lightning
    • Lightning happens much closer to us than thunder
    • Light travels faster than sound

    Both come from the same event, but they reach us at different speeds.

    Show solution

    • Light travels faster than sound

    Lightning heats the air very quickly. This produces the sound we call thunder.

14. 14. Escolhe a resposta correta.

    Why do places near the sea have cooler summers and warmer winters than places far from the sea?

    • The sea changes temperature faster than land
    • The sea changes temperature more slowly than land
    • The sea stays the same temperature all year

    The sea can keep heat for a long time.

    Show solution

    • The sea changes temperature more slowly than land

    In summer, the sea warms up slowly, so it keeps the air nearby cooler. In winter, the sea gives some of its stored heat to the air nearby.

15. 15. Escolhe a resposta correta.

    A place usually has warm summers, but one summer day is cold. What does this tell us?

    • Only the weather has changed, not the climate
    • The climate has changed in one day
    • Winter has started early

    One unusual day does not describe many years.

    Show solution

    • Only the weather has changed, not the climate

    Weather can change from day to day. Climate describes the usual weather over many years.