Class 5 – Science Worksheet – Chapter 7: Energy—How Things Work
worksheet for Class 5 – Chapter 7: Energy—How Things Work based on the complete chapter
Class 5 – Science Worksheet
Chapter 7: Energy—How Things Work
Name: _____________________ Date: _______________
Marks: 20
Section A: Observation & Questions
- Observe the activities in your kitchen for a few minutes. Fill the table below:
| I Observe | I Wonder |
|---|---|
- From your observation of daily activities, list three things that use energy:
- Moving: ____________________________
- Producing light: _____________________
- Making a sound: _____________________
- Making things hot: ___________________
- Making things cool: __________________
Section B: Activities and Thinking
Activity 1: Balloon Experiment
- Blow a balloon and release it. What happens?
- Suggest one way to make the balloon move faster or slower.
Activity 2: Rubber Band Sound
- Stretch rubber bands on a box and pluck them. What do you notice?
- What happens if you use thinner or thicker rubber bands?
Activity 3: Sun-Powered Water Warmer
- Place two cups of water—one in sunlight, one in shade. Observe the temperature.
- Explain why the water in sunlight feels warmer.
Section C: Sources of Energy
- Why do humans feel active after eating?
- Name two sources of energy for animals.
- What fuels do vehicles use to run?
- Write one fuel used in your home for cooking.
- What problems can occur if too much wood or coal is used?
Activity 4: Diya Experiment
- Light two diyas—one with oil, one without. Observe the difference.
- Identify what acts as fuel in the diya.
Section D: Electricity
Activity 5: Things that run on electricity
| S. No. | Device | What it does | What it requires (light/sound/heat/movement/cooling/other) |
|---|---|---|---|
| 1 | Fan | Blows air | Movement |
| 2 | |||
| 3 | |||
| 4 | |||
| 5 |
- Imagine a day with no electricity at all. How would your day be different?
Section E: Renewable Energy Activities
Activity 6: Pinwheel
- Make a pinwheel and hold it in the wind or run with it. What happens?
Activity 7: Sunlight in Focus
- Focus sunlight with a magnifying glass on paper. What happens to the paper?
Activity 8: Water Wheel
- Make a paper cup water wheel with spoons and a pencil.
- Observe what happens when water is poured on the wheel.
Section F: Energy Around Us
Activity 9: Energy Flow Game
- Match the energy source → type of energy → use (examples: Sun → Heat → Drying clothes).
- Make at least three such chains.
Think & Write:
- Give two examples of stored energy you have seen.
- List three objects in your home/classroom that use energy and their source.
- Draw or make a simple plan of a clean energy home using solar, wind, or other natural sources.
- Make your energy diary for one day—record how many times you used electricity, fuel, or other energy sources.
Section G: Reflection Questions
- What would happen if there was no electricity in your house for a day?
- Why is it better to use solar or wind energy instead of coal?
- How can you save energy at home?
- Find out the fuel efficiency of different vehicles in your area (km per litre). Compare them.
- Can you think of more examples of using the Sun, wind, or water in daily life?
Class 5 – Science Worksheet (With Answers)
Chapter 7: Energy—How Things Work
Name: _____________________ Date: _______________
Marks: 20
Section A: Observation & Questions
- Observe the activities in your kitchen for a few minutes. Fill the table below:
| I Observe | I Wonder |
|---|---|
| The food is getting cooked | How is it being cooked? |
| The water is boiling | Why does the water get hot? |
| The fan is moving | How is the fan moving? |
- From your observation of daily activities, list three things that use energy:
- Moving: Fan, Scooter, Running
- Producing light: Bulb, Candle, Torch
- Making a sound: Radio, Bell, Clap
- Making things hot: Stove, Kettle, Oven
- Making things cool: Refrigerator, Fan, Air Cooler
Section B: Activities and Thinking
Activity 1: Balloon Experiment
- Blow a balloon and release it. What happens?
When the air rushes out of the balloon, it pushes the balloon forward. - Suggest one way to make the balloon move faster or slower.
To make the balloon move faster, fill more air or use a lighter balloon. To move slower, use less air or a heavier object.
Activity 2: Rubber Band Sound
- Stretch rubber bands on a box and pluck them. What do you notice?
Plucking the rubber bands makes them vibrate and produce sound. - What happens if you use thinner or thicker rubber bands?
Thinner bands produce higher-pitched sounds; thicker bands produce lower-pitched sounds.
Activity 3: Sun-Powered Water Warmer
- Place two cups of water—one in sunlight, one in shade. Observe the temperature.
The water in sunlight feels warmer than the water in shade. - Explain why the water in sunlight feels warmer.
The Sun’s heat energy warms the water.
Section C: Sources of Energy
- Why do humans feel active after eating?
Humans feel active after eating because food gives energy. - Name two sources of energy for animals.
Two sources of energy for animals: Food, Sun (indirectly through plants). - What fuels do vehicles use to run?
Vehicles use fuels like petrol, diesel, and sometimes electricity to run. - Write one fuel used in your home for cooking.
Fuel used at home for cooking: Gas, Wood, or Coal. - What problems can occur if too much wood or coal is used?
Problems of using too much wood or coal: Smoke, pollution, deforestation, health hazards.
Activity 4: Diya Experiment
- Light two diyas—one with oil, one without. Observe the difference.
The diya with oil burns longer than the one without oil. - Identify what acts as fuel in the diya.
The oil acts as the fuel.
Section D: Electricity
Activity 5: Things that run on electricity
| S. No. | Device | What it does | What it requires (light/sound/heat/movement/cooling/other) |
|---|---|---|---|
| 1 | Fan | Blows air | Movement |
| 2 | |||
| 3 | |||
| 4 | |||
| 5 |
Answer:
| S. No. | Device | What it does | What it requires (light/sound/heat/movement/cooling/other) |
|---|---|---|---|
| 1 | Fan | Blows air | Movement |
| 2 | Bulb | Gives light | Light |
| 3 | Radio | Produces sound | Sound |
| 4 | Electric kettle | Heats water | Heat |
| 5 | Refrigerator | Cools food | Cooling |
- Imagine a day with no electricity at all. How would your day be different?
Answer: A day with no electricity would be difficult: no light, fan, or electronic devices.
Section E: Renewable Energy Activities
Activity 6: Pinwheel
- The pinwheel rotates when the wind blows or when you run.
Activity 7: Sunlight in Focus
- The paper can burn or get hot when sunlight is focused on it.
Activity 8: Water Wheel
- Pouring water makes the wheel spin. Water energy causes movement.
Section F: Energy Around Us
Activity 9: Energy Flow Game
- Make at least three such chains.
- Match the energy source → type of energy → use (examples: Sun → Heat → Drying clothes).
Answer:
Example matches:
Sun → Heat → Drying clothes
Wind → Movement → Turning a turbine to make electricity
Food → Movement → Running, playing
Think & Write:
- Give two examples of stored energy you have seen.
Two examples of stored energy: Battery in a torch, Food stored in our body. - List three objects in your home/classroom that use energy and their source.
Three objects and their energy sources:- Fan → Electricity
- Car → Fuel (Petrol/Diesel)
- Stove → Gas
- Draw or make a simple plan of a clean energy home using solar, wind, or other natural sources.
Clean energy home plan: House with solar panels on the roof, wind turbine in yard, using solar water heater. - Make your energy diary for one day—record how many times you used electricity, fuel, or other energy sources.
Energy diary: Record each use of electricity, fuel, or water energy throughout the day.
Section G: Reflection Questions
- What would happen if there was no electricity in your house for a day?
Without electricity, homes would be dark, fans wouldn’t work, no electronic devices. - Why is it better to use solar or wind energy instead of coal?
Solar or wind energy is better than coal because it does not pollute the air and is renewable. - How can you save energy at home?
Save energy at home: Turn off lights/fans when not in use, use LED bulbs, use sunlight for drying clothes. - Find out the fuel efficiency of different vehicles in your area (km per litre). Compare them.
Fuel efficiency: Compare km per litre of different vehicles; higher km/litre = more efficient. - Can you think of more examples of using the Sun, wind, or water in daily life?
More examples of Sun, wind, water usage: Drying clothes, windmill turning, watermill grinding grains.
Other Important Notes Related to This Chapter
NCERT Question Answer Solution Class 5 chapter 7 – Energy: How Things Work
CBSE Summary Notes Chapter 7 – Energy: How Things Work
Extra Questions Chapter 7 – Energy: How Things Work
Practice Worksheet Chapter 7 – Energy: How Things Work