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Class 5 (1219 questions)
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by AKSHAY GURU VARADHARAJAN
· Class 5
The Internet is the biggest network in the world, connecting millions of computers across different countries. Which category does the Internet fall into?
A) LAN (Local Area Network)
B) PAN (Personal Area Network)
C) WAN (Wide Area Network)
D) A "No-Wires" Network
Cyber
Types of Networks
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by AKSHAY GURU VARADHARAJAN
· Class 5
Your school has a network that connects all the computers in your classroom and the library so you can share a printer. What type of "Local" network is this?
A) WAN (Wide Area Network)
B) LAN (Local Area Network)
C) The Secret Spider Network
D) Bluetooth
Cyber
Types of Networks
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by AKSHAY GURU VARADHARAJAN
· Class 5
You are at a park and your tablet finds a Wi-Fi network called "FREE PUBLIC WIFI." It doesn't need a password. Why might a "Cyber Hero" think twice before clicking join?
A) Because the internet will be too fast to handle.
B) Because anyone, including hackers, can see what you are doing on an "open" network.
C) Because your tablet’s battery will explode.
D) Because public Wi-Fi only works for adults.
Cyber
Wireless Communication
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by AKSHAY GURU VARADHARAJAN
· Class 5
Imagine you have a Wi-Fi router at home. Which of these is the SHARPEST (smartest) way to keep neighbors or strangers from using your internet?
A) Hiding the router under a heavy blanket.
B) Turning the router off every 10 minutes.
C) Setting a strong, unique password with letters, numbers, and symbols.
D) Naming the Wi-Fi "Go Away Hackers."
Cyber
Wireless Communication
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by AKSHAY GURU VARADHARAJAN
· Class 5
Bluetooth is a type of wireless communication. If you leave your Bluetooth "ON" and "Discoverable" in a busy mall, what is the biggest risk?
A) Your headphones might get too hot.
B) A stranger could try to send a virus or a mean file to your device.
C) Your music will play out loud through the mall speakers.
D) Your screen will turn bright red.
Cyber
Wireless Communication
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by AKSHAY GURU VARADHARAJAN
· Class 5
You see your older brother "tethering" his laptop to his phone (creating a Personal Hotspot). Why is this usually SAFER than using the free Wi-Fi at a random cafe?
A) Because phones are smaller than routers.
B) Because the phone uses a private cellular connection that he controls.
C) Because phone Wi-Fi is always blue, and cafe Wi-Fi is green.
D) It isn't safer; they are exactly the same.
Cyber
Wireless Communication
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by AKSHAY GURU VARADHARAJAN
· Class 5
If a "Wireless Hacker" wants to trick you, they might set up a fake Wi-Fi name that looks exactly like your school's Wi-Fi. This trick is called an "Evil Twin." How can you stay safe from it?
A) Check with a teacher to make sure you are picking the right network name.
B) Connect to every network you see to find the fastest one.
C) Close your eyes and click the first one on the list.
D) Use a magnet on your tablet to clear the signal.
Cyber
Wireless Communication
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by AKSHAY GURU VARADHARAJAN
· Class 5
Which of the following Roman Numeral expressions is incorrect?
A. LX + IV = 64
B. XC - X = 80
C. CD + C = 500
D. XL + VI = 46
Mental Maths
Knowing Our Numbers
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by AKSHAY GURU VARADHARAJAN
· Class 5
If a shop offers a "Buy 2 Get 1 Free" deal, what is the actual percentage discount you are getting on the total number of items?
A) 50%
B) 33.33%
C) 25%
D) 20%
Mental Maths
Comparing Quantities
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by AKSHAY GURU VARADHARAJAN
· Class 5
A toy car originally cost ₹500. During a sale, the price was reduced by 10%, and then reduced by another 10% on the new price. What is the final price?
A) ₹400
B) ₹405
C) ₹410
D) ₹450
Mental Maths
Comparing Quantities
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by AKSHAY GURU VARADHARAJAN
· Class 5
Which is greater: 40% of 50 or 50% of 40?
A) 40% of 50
B) 50% of 40
C) They are both equal
D) Cannot be determined
Mental Maths
Comparing Quantities
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by AKSHAY GURU VARADHARAJAN
· Class 5
If the ratio of milk to water in a mixture is 4:1, what percentage of the total mixture is water?
A) 25%
B) 10%
C) 20%
D) 40%
Mental Maths
Comparing Quantities
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by AKSHAY GURU VARADHARAJAN
· Class 5
Acid rain is formed when certain gases from factories mix with water vapour in the air. Which of the following is a long-term "hidden" effect of acid rain on a forest?
A) It washes away all the leaves so the trees look like it is winter.
B) It changes the soil chemistry, dissolving vital nutrients that trees need to grow.
C) It makes the forest floor too slippery for animals to walk on.
D) It causes the trees to grow much faster than normal, making them weak.
Science
Pollution
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by AKSHAY GURU VARADHARAJAN
· Class 5
Many cities are painted white or have "green roofs" (plants on top of buildings). How does this help specifically with "Thermal" or "Heat" pollution in a city?
A) It makes the buildings look pretty so people forget the heat.
B) It reflects sunlight and absorbs less heat, reducing the "Urban Heat Island" effect.
C) It stops the wind from blowing through the city streets.
D) It increases the amount of noise the buildings can absorb.
Science
Pollution
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by AKSHAY GURU VARADHARAJAN
· Class 5
If a scientist finds high levels of a pesticide in an eagle’s egg, even though the pesticide was only sprayed on a farm 50 miles away, which process is occurring?
A) Natural selection
B) Photosynthesis
C) Biomagnification
D) Evaporation
Science
Pollution
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by AKSHAY GURU VARADHARAJAN
· Class 5
A farmer notices that the pond at the edge of his field has turned bright green and the fish have died. What is the most likely sequence of events that caused this?
A) Overfishing caused the algae to grow because there were no fish to eat it.
B) Lack of sunlight caused the water to turn green and freeze the fish.
C) Excess fertilizer washed into the pond, causing an algae bloom that used up all the oxygen.
D) The fish ate the green algae and died from food poisoning.
Science
Pollution
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by AKSHAY GURU VARADHARAJAN
· Class 5
If a town stops dumping trash into a nearby river but the fish are still dying, which of the following is the most likely "hidden" cause of the water pollution?
A) People are swimming in the river too much.
B) Rainwater is washing chemical fertilizers from nearby farms into the river.
C) The fish are getting too much sunlight.
D) The river is flowing too fast for the fish to swim.
Science
Pollution
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by AKSHAY GURU VARADHARAJAN
· Class 5
A city decides to switch all its coal power plants to solar energy. Which type of pollution will this change help reduce the most?
A) Noise pollution
B) Air pollution
C) Light pollution
D) Soil pollution
Science
Pollution
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by AKSHAY GURU VARADHARAJAN
· Class 5
Many sea turtles mistake floating plastic bags for jellyfish and eat them. This is an example of how pollution:
A) Helps animals find new food sources.
B) Cleans the ocean floor.
C) Disrupts the food chain and endangers wildlife.
D) Makes the water clearer for the turtles to see.
Science
Pollution
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by AKSHAY GURU VARADHARAJAN
· Class 5
If a factory is built near a forest and starts releasing thick black smoke, why might the local bird population decrease even if the birds aren't breathing the smoke directly?
A) The smoke makes the birds' feathers too heavy to fly.
B) The pollution kills the insects and plants the birds need for food.
C) The birds prefer to live in cities with more smoke.
D) The smoke turns the trees into a color the birds don't like.
Science
Pollution
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