Science Olympiad worksheet - Free Printable
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Step-by-step solution for: Science Olympiad worksheet
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Show Answer Key & Explanations
Step-by-step solution for: Science Olympiad worksheet
Let's solve each question step by step:
---
- Options: Venus, Earth, Jupiter, Saturn
- Solution: The planets in order from the Sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. The fifth planet is Jupiter.
- Answer: Jupiter
---
- Solution: This describes a food chain, where energy and nutrients flow from one organism to another in a linear sequence.
- Answer: Food chain
---
- Solution: These tiny openings are called stomata (singular: stoma). They allow gases like CO₂ and O₂ to enter and exit the plant and also facilitate water loss through transpiration.
- Answer: Stomata
---
- Options: Solid, Liquid, Gas
- Solution: Mercury is unique among metals because it is liquid at room temperature. It does not exist as a solid or gas under normal conditions.
- Answer: Liquid
---
- Options: Hygrometer, Barometer, Anemometer
- Solution: A barometer is specifically designed to measure atmospheric pressure. A hygrometer measures humidity, and an anemometer measures wind speed.
- Answer: Barometer
---
- Options: Cardiologist, Paediatrician, Dermatologist
- Solution: A dermatologist specializes in treating skin-related issues. A cardiologist treats heart-related issues, and a paediatrician treats children.
- Answer: Dermatologist
---
- Solution: Bile is produced by the liver. It helps in digestion, particularly the breakdown of fats.
- Answer: Liver
---
- Options: Producer, Consumer, Decomposer
- Solution: Earthworms play a crucial role in breaking down organic matter and recycling nutrients back into the soil. They are decomposers.
- Answer: Decomposer
---
- Solution: Salamanders are amphibians, which are cold-blooded animals. Their body temperature changes with the environment.
- Answer: False
---
- Solution: Glass bottles do not break down naturally over time and are considered non-biodegradable waste.
- Answer: True
---
- Options: Outer core, Inner core, Crust, Mantle
- Solution: The outermost layer of the Earth is the crust, which includes both the continental and oceanic crust.
- Answer: Crust
---
- Solution: When a gas cools down and changes into a liquid, it undergoes condensation.
- Answer: Condensation
---
- Options: Soil erosion, Flood, Landslide, Earthquake
- Solution: Soil erosion is a slow process compared to floods, landslides, and earthquakes, which can cause rapid changes in the Earth's surface.
- Answer: Soil erosion
---
- Options: Tea leaves, Vegetables, Grass cuttings, Dairy and eggs
- Solution: Tea leaves, vegetables, and grass cuttings are all suitable for composting as they are organic materials. However, dairy products and eggs should not be composted because they can attract pests and create unpleasant odors.
- Answer: Dairy and eggs
---
1. Jupiter
2. Food chain
3. Stomata
4. Liquid
5. Barometer
6. Dermatologist
7. Liver
8. Decomposer
9. False
10. True
11. Crust
12. Condensation
13. Soil erosion
14. Dairy and eggs
Boxed Final Answer:
\[
\boxed{
1. \text{Jupiter}, \,
2. \text{Food chain}, \,
3. \text{Stomata}, \,
4. \text{Liquid}, \,
5. \text{Barometer}, \,
6. \text{Dermatologist}, \,
7. \text{Liver}, \,
8. \text{Decomposer}, \,
9. \text{False}, \,
10. \text{True}, \,
11. \text{Crust}, \,
12. \text{Condensation}, \,
13. \text{Soil erosion}, \,
14. \text{Dairy and eggs}
}
\]
---
1. The fifth planet from the sun is
- Options: Venus, Earth, Jupiter, Saturn
- Solution: The planets in order from the Sun are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. The fifth planet is Jupiter.
- Answer: Jupiter
---
2. The linear sequence of organisms through which nutrients and energy pass as one organism eats another is called
- Solution: This describes a food chain, where energy and nutrients flow from one organism to another in a linear sequence.
- Answer: Food chain
---
3. The tiny openings or pore present in plants that is responsible for gases exchange and transpiration in plants is called
- Solution: These tiny openings are called stomata (singular: stoma). They allow gases like CO₂ and O₂ to enter and exit the plant and also facilitate water loss through transpiration.
- Answer: Stomata
---
4. Mercury metal is in which state?
- Options: Solid, Liquid, Gas
- Solution: Mercury is unique among metals because it is liquid at room temperature. It does not exist as a solid or gas under normal conditions.
- Answer: Liquid
---
5. An instrument which is used to measure atmospheric pressure.
- Options: Hygrometer, Barometer, Anemometer
- Solution: A barometer is specifically designed to measure atmospheric pressure. A hygrometer measures humidity, and an anemometer measures wind speed.
- Answer: Barometer
---
6. A medical expert who treats skin diseases is known as
- Options: Cardiologist, Paediatrician, Dermatologist
- Solution: A dermatologist specializes in treating skin-related issues. A cardiologist treats heart-related issues, and a paediatrician treats children.
- Answer: Dermatologist
---
7. Which organ of the body produces the fluid known as bile?
- Solution: Bile is produced by the liver. It helps in digestion, particularly the breakdown of fats.
- Answer: Liver
---
8. Earthworm is a
- Options: Producer, Consumer, Decomposer
- Solution: Earthworms play a crucial role in breaking down organic matter and recycling nutrients back into the soil. They are decomposers.
- Answer: Decomposer
---
9. A salamander is a warm-blooded animal.
- Solution: Salamanders are amphibians, which are cold-blooded animals. Their body temperature changes with the environment.
- Answer: False
---
10. Glass bottles are non-biodegradable waste.
- Solution: Glass bottles do not break down naturally over time and are considered non-biodegradable waste.
- Answer: True
---
11. The outermost part of the Earth is
- Options: Outer core, Inner core, Crust, Mantle
- Solution: The outermost layer of the Earth is the crust, which includes both the continental and oceanic crust.
- Answer: Crust
---
12. The process when a gas turns into liquid when it comes in contact with a cold surface is called
- Solution: When a gas cools down and changes into a liquid, it undergoes condensation.
- Answer: Condensation
---
13. Which is not the fast process of cause of change in Earth's surface?
- Options: Soil erosion, Flood, Landslide, Earthquake
- Solution: Soil erosion is a slow process compared to floods, landslides, and earthquakes, which can cause rapid changes in the Earth's surface.
- Answer: Soil erosion
---
14. Which of the following should not be composted?
- Options: Tea leaves, Vegetables, Grass cuttings, Dairy and eggs
- Solution: Tea leaves, vegetables, and grass cuttings are all suitable for composting as they are organic materials. However, dairy products and eggs should not be composted because they can attract pests and create unpleasant odors.
- Answer: Dairy and eggs
---
Final Answers:
1. Jupiter
2. Food chain
3. Stomata
4. Liquid
5. Barometer
6. Dermatologist
7. Liver
8. Decomposer
9. False
10. True
11. Crust
12. Condensation
13. Soil erosion
14. Dairy and eggs
Boxed Final Answer:
\[
\boxed{
1. \text{Jupiter}, \,
2. \text{Food chain}, \,
3. \text{Stomata}, \,
4. \text{Liquid}, \,
5. \text{Barometer}, \,
6. \text{Dermatologist}, \,
7. \text{Liver}, \,
8. \text{Decomposer}, \,
9. \text{False}, \,
10. \text{True}, \,
11. \text{Crust}, \,
12. \text{Condensation}, \,
13. \text{Soil erosion}, \,
14. \text{Dairy and eggs}
}
\]
Parent Tip: Review the logic above to help your child master the concept of olympiad worksheet.
