Questions for test (B VS G) “Science”

1. Describe how mountains and volcanoes are:

- The same
- Different.
2. The places where tectonic plates meet is called what?
3. The movement of tectonic plates are created by how many types of plate boundaries? Name
the three types.
4. How do fold mountains form?
5. Name the three (3) biggest fold mountains.
6. How are volcanoes formed?
7. What is the difference between a active, inactive, dormant, and extinct volcanoe
8. What is the scientific word that is used to describe the strength of an earthquake?
9. Explain how tectonic plates can cause fold mountains to form.
10. What statement is true about tectonic plates?

A. They never move.

B. They move in different ways.
C. They always move towards each other.
D. They always move away from each other.
11. Explain what causes an earthquake.
12. Explain how a shadow is formed.
13. Describe whether each of these statements is true or false.
- The Moon gives out its own light.
- The sun give out its own light.
If its false or true, give an explanation of why it’s true or false.
14. What does the word “pH” mean?
15. How does light travel? And what is the name of the traveled light?
16. How does a solar eclipse happen?
17. What is the difference between a total and a partial solar eclipse?
18. How does a lunar eclipse happen?
19. Does the earth block the moon or the moon block the earth during a lunar eclipse?
20. Write a true or false for this statement.
“A total lunar eclipse can only ever be seen in the daytime.”
Explain your answer.
21. What type of terminology is needed for a sound to be made?
22. What are tectonic plates?
23. What is a microorganism? Can many of them be single-celled?
24. What is the singular word for bacteria?
25. What is the singular word for fungi?
26. Can all bacteria be harmless to us? If no than why aren’t they harmless to us? If yes why are
they harmless to us?
27. Viruses are even smaller than bacteria, suggest why they are not usually said to be
microorganisms.
28.We can see yeast on the surface of fruit. Why is yeast classed as a microorganism.
29. When bacteria grows on a petri dish, containing agar jelly, the cells of microorganisms are
grouped up. What Is it this called?
30. What is the name of the microorganism that have cells like animal cells?
31. What is the name of the microorganism that have cells like plant cells?
32. Tigers eat deer. Deer eat grass. Write this as a food chain.
34. When scientists study organisms in their environment, it is called what?
35. Levi has a chicken and rice for lunch. It gives him a lot of energy. The food you eat gives you
energy. How did the energy get into the food? Remember to use the main source of sunlight as
the producer for this.
36. What does the start of a food chain or food web have in them?
37. Consumers that only consumes plants are called what?
38. Consumers that consume other animals are called what?
39. Animals that catch, kill, and eat other animals are called what?
40. Some microorganisms are decomposers. Explain what this means.
41. Describe one way that decay by microorganisms is not useful.
42. Suggest one way that decay by microorganisms is useful.
43. Do decomposers feed on almost every organism after it dies? If yes, explain why, if no
explain why they don’t.
44. State what can happen when tectonic plates rub against each other in opposite directions.
45. State the name of the part of the Earth that forms the centre.
46. Name the most common non-metal in the earth’s crust.
47. Name the most common metal in the earth’s crust.
48. What does the term “Continental drift” mean?
49. Name the four (4) parts of the earth, by drawing and labeling a diagram to show what the
earth would look like if it were to be cut through.
50. Name the three (3) bones that is essential for the human ear to hear sound.
51. Can echoes be useful? If yes, explain why they can be useful, if no explain why they can’t be
useful.
52. Sometimes echoes are unwanted. Are these unwanted echoes useful?
53. Write a statement that describe what happens to a sound to make an echo.
54. What is the one property of all waves that can be bounced from surfaces?
55. When you clap your hand, you hear a sound. This sound is a reflection, what is the reflection
of sound called?
56. Describe the movement of particles in a sound wave.
57. Can sound wave travel through all the matters? Like solid, liquid, gas? If so which one can
sound travel through the easiest.
58. Can sound travel through a vacuum?
59. The Moon has no atmosphere. People who went to the moon wore suits that contained air.
The people who went to the moon worked close together. They did work such as hammering
and digging. Explain why the people during this work could not hear it happened?
60. To hear a sound there must be two (2) things. What are these two (2) things?
61. What is a sound wave?
62. When an object vibrates, it moves in what directions?
63. The speed of sound waves in air is about how many m/s (Metres per second)?
64. Sound can vary in both things (2), what are these things.
65. What does the pH scale measure?
66. What is the pH of a neutral solution?
67. What is the difference between a litmus indicator and a universal indicator?
68. What colours does universal indicator turn in acids?
69. What color does universal indicator turn in a liquid with a pH of 9?
70. What range of pH do strong alkalis have?
71. What disease can you get from volcano ash?
72. What plate are we living in?
73. What causes the tectonic plates to move?
74. A sound is sent from the ship to the bottom of the water. The sound echoes off the bottom
of the water and comes back to the ship. The distance between them is 750m.

The sound takes 1.0 seconds to go from the ship to the bottom of the water and back to the
ship.
A. Calculate the speed of the sound in the water.
Use the equation speed = distance
-----------

Time
75. Explain why universal indicator is more useful than litmus.
76. In a meadow, grasshoppers and caterpillars eat grass. Lizards eat grasshoppers. Small birds
eat caterpillars. Hawks eat lizards and small birds.
Use this information to construct a food web. Include decomposers in your food web.

77. A diagram showing how energy passes from one organism to another is called a what?
78. Sofia found some information on the internet:
“All cells, including microorgaisms, are kept alive by chemical reactions that happen inside the
celLs. The faster the reactions happen inside the cells. The faster the reactions happen, the
faster the microorganism grows and reproduces.

Chemical reactions happen faster when it is warm than when it is cold. The reactions take place
very slowly, or not at all, at low temperature, but speed up at higher temperatures. However, at
very high temperatures, the reactions stop”

Use this information that sofia found to suggest an explanation for the girls’ results.

79. Draw a diagram to show how a solar eclipse happen.

80. Draw a diagram to show how a lunar eclipse happen.
81. Arun hears two people taking. One person says: “I saw a lunar eclipse in the middle of the
day.” Draw a labelled diagram to show why this statement cannot be true.
82. Which parts of the earth a made of:
a. the metals iron and nickel
b. solid rock
c. molten (Hot liquid) rock and metal
d. solid iron and nickel
83. When arun puts his food down it makes a sound. Arun then hears the same sound again
after a very short time. Explain why he hears the sound again.
84. Describe how you can make your own indicator.
85. Explain what an indicator does.
86. Are decomposers producers or consumers?
87. A substance that has been made by a living organism is called what?
88. Yeast is a single-celled organism, is yeast a producer, decomposer, microorganism or a virus?
89. A long spring is stretched out across the floor. One end of the spring is attached to a wall.
Sofia holding the other end of the spring in front of her.
Describe how Sofia should move the spring to model a sound wave.
90. Fold mountains are formed when tectonic plates move in what direction?
91. Where is a volcanoe most likely to occur on a tectonic plate?
92. What type of movement between tectonic plates causes an earthquake?
93.

Answer for the science questions above :

1. Mountains and volcanoes are the same because they are formed by the movement of
tectonic plates and are different because mountains are formed by the folding or uplifting of the
earth crust by tectonic plates, while volcanoes are formed when magma from inside the earth
erupts on the surface.
2. The places where tectonic plates meet is called a plate boundary
3. The movement of tectonic plates are created by three (3) types of plate boundaries, these
plate three (3) types are:
- Plates moving together
- Plates moving apart
- Plates sliding past.
4. Fold mountains form when tectonic plates move together. This causes the rock to crumple
and fold upwards, forming a fold mountain.
5. The three (3) biggest fold mountains are:
- The himalayas
- Rocky mountains
- Ural mountains
6. Volcanoes are formed when magma from the mantle rises up through cracks in earths crust.
7. The difference between an active, inactive, dormant, and extinct volcano is that:
- Active volcano may erupt any time
- Inactive or dormant volcano have not erupted for a very long time
- Extinct volcano will never erupt again.
8. The scientific word that is used to describe the strength of an earthquake is magnitude.
9. Tectonic can cause fold mountains to form by moving together, this causes the rocks to
crumple and fold upwards forming a fold mountain:
10. The statement that is true about tectonic plates is that they move in different ways.
11. Earthquakes are caused by the tectonic plates sliding past eachother, which causes the
pressure the build up and burst out causing a earthquake.
12. A shadow is formed when an opaque object blocks light.
13. The moon does not give out its own light, instead it reflects light from the sun.
The sung does give out its own light, because the sun is star.
14. The word pH means the power of hydrogen.
15. Light travel in straight lines, the name of the traveled light is called a ray.
16. A solar eclipse happens when the moon passes between the Earth and the sun, blocking the
sunlight.

17. The difference between a total and a partial solar eclipse is that:
- The moon completely blocks the sun causing a total solar eclipse
- The moon only blocks part of the sun causing a partial solar eclipse.
18. A lunar eclipse happens when the earth passes between the sun and the moon, blocking the
sunlight from reaching the moon.
19. The earth blocks the moon during a lunar eclipse.
20. False. A total lunar eclipse can only be seen at night because the moon must be in the earths
shadow.
21. The type of terminology needed for sound to be made are vibrations.
22. Tectonic plates are large pieces of earths crust the float over the mantle and move slowly
over time.
23. A microorganism is a very small organism that can be only seen under a microscope. Many
microorganisms, can be single-celled.
24. The singular word for bacteria is bacterium.
25. The singular word for fungi is fungus.
26. No, not all bacteria are harmless to us. Some can diseases, while others can help.
27. Viruses are not said to be microorganisms because they are not alive. They need a host to
reproduce.
28. Yeast is a single celled orgaism that can only be seen under a microscope, which is why its
classified as a microorganism.
29. When bacteria grow on a petri dish, and are grouped up it is called a colony.
30. The name of the microorganism that has cells like animal cells is called protozoa.
31. The name of the microorganism that has cells like plant cells is called algae.
32. Grass  Deer Tiger.
33. When scientists study organisms in their environment, it is called ecology.
34. The energy in food comes from the Sun. the wheat uses this sunlight to make food through
photosynthesis, and the chicken then eats the wheat.
35. The start of a food chain or food web have producers (plants) in them that make their own
food.
36. Consumers that only consume plants are called herbivores.
37. Animals that only consume other animals are called carnivores.
38. Animals that catch, kill, and eat other animals are called predators.
39. Some microorganisms are decomposers. This means that decomposers break down organic
material, making them decay.
40. Decay can cause food to spoil, making it unsafe to eat.
41. Decay helps recycle nutrients in the soil, which helps plants grow.
42. Yes, decomposers break down dead organisms and return nutrients to the ecosystem.
43. When tectonic plates rub against each other in opposite directions this can cause
earthquakes.
44. The name of the part of the earth that forms the center is called the core.
45. The most common non-metal in the earths crust is oxygen.
46. The most common metal in the earth’s crust is aluminum.
47. The term “continental drift” means the slow movement of continents over time due to
tectonic plate movement.
48. The four (4) parts of the earth are:
- crust
- mantle
- outer core
- inner core.
49. The three (3) bones essential for the human ear to hear sound is:
- Hammer (malleus)
- Anvil (Incus)
- Stirrup (Stapes).
50. Yes, echoes can be useful, because they are used to detect things.
51. No, unwanted echoes can cause confusion or noise pollution.
52. To make an echo, sound waves need to be bounced off a surface and return back.
53. The one (1) property of all waves that can be bounced from surfaces is called reflection.
54. The reflection of sound is called an echo.
55. The movement of particles in a sound wave vibrate back and forth as sound waves pass
through.
56. Yes, sound travel through all matter like solids, liquids, and gas. It travels the easiest through
solids.
57. No, sound cannot travel through a vacuum because there’s no particles to vibrate.
58. The moon has no atmosphere, so sounds cannot travel because there are no particles to
vibrate.
59. To hear a sound, there must be two (2) things, they are:
- A vibrating object
- A place where there’s particles for the sound wave to vibrate and travel through.
60. A sound wave is a vibration that travels through a medium, like air and water.
61. When an object vibrates, it moves in a back and fourth direction.
62. The speed of sound in air is 343 m/s.
63. Sound can vary in two things, these things are:
- pitch ( How high or low the sound is)
- loudness ( How loud of quiet the sound is).

64. The pH scale measure how acidic or alkaline a substance is.

65. The pH of a neutral solution is 7.
66. The difference between a litmus indicator and a universal indicator is that:
- Litmus indicator only tells if a substance is acidic (red) or alkaline (blue)
- Universal indicator shows how acidic or alkaline a substance is.
67. The colors that universal indicator turn in acids are red, orange, and yellow in acids.
68. The color that universal indicator turns in a liquid with a pH of 9 is blue.
69. The range of pH that strong alkalis have is 11 – 14.
70. A lung disease you can get from volcano ash is
Pneumonoultramicroscopicsilicovolcanoconiosis.
71. The plate we are living in currently is the Eurasian plate.
72. Tectonic plates move due to the liquid rock beneath the Earth’s mantle causing a continental
drift.
73. The speed is 1500 m/s because speed = distance / time.
74. Universal indicator shows the exact pH level while litmus only shows if a substance is acidic
or alkaline.
75. Grass  grasshoppers  lizards  hawks.
grass Caterpillerssmall birdshawks.
76. A diagram showing how energy passes from one organism to another is called a food chain
or food web.
77. Microorganisms grow faster in warm temperatures because chemical reactions speed up. At
very high temperatures, the reactions stop. Killing the microorganisms in the process.
78. …..
79. …..
80. A lunar eclipse can only happen at night when the moon is in the earth’s shadow.
81. The parts of the earth are made of:
a. iron and nickel  core
b. solid rock crust
c. molten rock and metal mantle
d. solid iron and nickel inner core.
82. Arun hears the sound again because it is an echo, a bounced sound wave.
83. To make an indicator you will need red cabbage or beetroot and place it into a mortar; crush
it using the pestle; add some ethanol and crush it some more, remove some of the liquid using
the pipette and place it in a test tube.
84. An indicator shows whether a substance is acidic or Decalkaline by changing ccolor.
85. Decomposers are consumers because they feed on dead organisms.
86. A substance made by a living organism is called organic matter.
87. Yeast is a microorganism and a decomposer.
88. She should move the spring model back and forth to create waves that travel along it.
89 Fold mountains are formed when tectonic plates move in the same direction.
90. A volcano is most likely to occur at the plate boundary on a tectonic plate.
91. Sudden movement between tectonic plates causes an earthquake to happen.
92. a