OIympiad Test: General Science- 6 - Class 1 MCQ

Living things need non-living things to stay alive:
- Living things breathe air: This statement indicates that living things require non-living air to survive. Air is composed of gases such as oxygen, which is essential for the respiration process in living organisms. Without oxygen, living things would not be able to carry out cellular respiration and produce energy.
- Living things drink water: This statement highlights the fact that living things need non-living water for their survival. Water is crucial for various biological processes, including hydration, transportation of nutrients, and regulation of body temperature. Without water, living organisms would not be able to maintain their bodily functions and would eventually die.
- Living things can reproduce: While reproduction is a characteristic of living things, it does not directly indicate the need for non-living things to stay alive. Reproduction ensures the continuity of life but does not necessarily depend on non-living resources.
- Both A and B: This option correctly identifies that living things require both air (A) and water (B) to stay alive. Air provides oxygen, which is essential for respiration, while water is necessary for various physiological processes.
Therefore, option D, "Both A and B," is the correct statement to show that living things need non-living things to stay alive.

Cockroaches known as insects because they have six legs which are in the form of three pairs of jointed legs. The other features that distinguish insects from other animals are a chitinous exoskeleton, a three-part body of head, thorax, and abdomen, three pairs of jointed legs, compound eyes, and one pair of antennae.

Here is a detailed solution explaining why we should never push each other on the staircase:
1. Safety hazards:
- Pushing each other on the staircase can lead to accidents and injuries, potentially causing serious harm to individuals involved.
- Staircases are designed for safe movement between different levels, and any form of pushing or rough play disrupts the intended purpose and increases the risk of falls or collisions.
2. Risk of falling:
- Pushing someone on the staircase can cause them to lose their balance and fall, potentially resulting in broken bones, sprains, or head injuries.
- Staircases are one of the most common places for accidental falls, and engaging in such activities only heightens the chances of accidents occurring.
3. Disruption to others:
- Pushing each other on the staircase can also disrupt other individuals using the stairs, leading to inconvenience or even accidents for them as well.
- Staircases are typically used by multiple people simultaneously, and any form of pushing or rough behavior can create chaos and potentially harm innocent bystanders.
4. Respect for personal space:
- Pushing someone on the staircase violates their personal space and can be considered an invasion of their boundaries.
- It is important to respect the personal space and physical well-being of others, especially in shared spaces like staircases.
5. Encourages unsafe behavior:
- Engaging in pushing or rough play on the staircase sets a bad example for others and encourages unsafe behavior.
- It is essential to promote a culture of safety and responsible conduct, especially in areas where accidents can easily happen.
In conclusion, pushing each other on the staircase should never be done due to the safety hazards, risk of falling, disruption to others, violation of personal space, and encouragement of unsafe behavior. It is crucial to prioritize safety and respect when using staircases to prevent accidents and ensure a pleasant and secure environment for everyone.

• Shiver: River Cake: Lake Bring: Spring Bug does not rhyme with any water body.

Why is a blown-up football heavier than a blown-out football?
Air has weight:
- Air is composed of molecules that have mass, and therefore, weight.
- When a football is blown up, it is filled with air, adding weight to the overall object.
Air fills space:
- When a football is blown up, the air fills the space inside the ball, increasing its volume.
- An increase in volume leads to an increase in mass, resulting in a heavier football.
Air gives shape to things:
- The presence of air inside the football gives it its characteristic shape and size.
- Without the air, the football loses its shape and becomes deflated, resulting in a lighter object.
Air is needed for burning:
- While air is indeed necessary for burning, it is not directly relevant to the weight of a blown-up football.
- The weight difference between a blown-up football and a blown-out football is due to the properties of air, not its combustion abilities.
In conclusion, a blown-up football is heavier than a blown-out football because air has weight, fills space, and gives shape to the object.

Explanation:
- A New Moon occurs when the Moon is positioned between the Earth and the Sun, with the side of the Moon that is facing Earth not visible.
- During a New Moon, the Moon is essentially in shadow and is not illuminated by the Sun.
- As a result, there is no visible Moon in the sky during a New Moon.
- The sky appears dark during this phase, with no discernible Moon.
- The absence of the Moon in the sky is why a New Moon is often referred to as a "No Moon."
Summary:
- A New Moon means there is No Moon in the sky.

Detailed
The incorrect statement out of the given options is B: Water comes from rain.
Explanation:
- Water is essential for all living things: This statement is correct as water is a fundamental requirement for the survival of all living organisms.
- Steam and water droplets are two different forms of water: This statement is correct as steam is the gaseous form of water, while water droplets refer to the liquid form of water.
- Mist is water that contains smoke: This statement is correct as mist is a type of atmospheric moisture consisting of tiny water droplets suspended in the air, often created by the condensation of water vapor.
- Water comes from rain: This statement is incorrect as rain is a form of precipitation that occurs when water vapor condenses in the atmosphere and falls back to the Earth's surface. While rain contributes to the water cycle, it is not the sole source of water. Water also comes from other sources such as rivers, lakes, groundwater, and melting snow.
Therefore, the correct answer is B: Water comes from rain.

To determine the festival that is not celebrated in the winter season, we need to analyze the given options:
1. Christmas: Christmas is a Christian festival celebrated on December 25th, which falls in the winter season. It is widely celebrated all over the world, marking the birth of Jesus Christ.
2. Republic Day: Republic Day is celebrated in India on January 26th. Although it occurs during the winter season, it is not a winter festival. Republic Day commemorates the date on which the Constitution of India came into effect in 1950.
3. Lohri: Lohri is a Punjabi festival celebrated on January 13th, which is during the winter season. It is primarily associated with the agricultural harvest and is celebrated with bonfires, singing, and dancing.
4. Independence Day: Independence Day is celebrated in India on August 15th, which is not a winter season. It marks the country's independence from British rule in 1947.
Therefore, the correct answer is D: Independence Day. It is not celebrated in the winter season.

Answer:
Grapevine
- A grapevine is a plant that needs support to grow upwards.
- It bears round, green fruits in bunches, which are grapes.
- Watermelon is not the correct answer because it grows on the ground and does not need support to grow upwards.
- Money plant is not the correct answer because it does not bear round, green fruits.
- Bean plant is not the correct answer because it grows on the ground and does not need support to grow upwards.

The incorrect statement out of the given options is C:

Animals found in the forest are called flesh-eating animals.

Explanation:
- A:

Animals which we keep in our homes as companions are called pet animals.

- This is a correct statement. Pet animals are those that are kept for companionship and are often treated as family members.
- B:

Animals which we keep in farms to get useful things and other help are called domestic animals.

- This is a correct statement. Domestic animals are those that are kept for various purposes such as farming, transportation, and providing us with food and useful products.
- C:

Animals found in the forest are called flesh-eating animals.

- This statement is incorrect. Animals found in the forest are not exclusively flesh-eating. Forests are home to a diverse range of animals with different diets, including herbivores, carnivores, and omnivores.
- D:

Animals like tiger and bear are called wild animals.

- This is a correct statement. Tigers, bears, and other similar animals are categorized as wild animals as they live in natural habitats and are not domesticated.
Therefore, the incorrect statement is option C:

Animals found in the forest are called flesh-eating animals.