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NCERT Solutions for Class 5th The World Around Us Chapter 7 Energy Flow Game — Activity 9

Book page 128 Updated on2026-09-19

Q1.
Energy Flow Game — Prepare paper slips with names or pictures of energy sources: the Sun, wind, water, food, fuel and electricity. The second paper slips should indicate types of energy, like heat, light, movement and sound. The last paper slips should contain the uses or examples of where this energy is used — drying clothes, lighting a bulb, turning a turbine, cooking, running, etc.
Answer

You need three sets of slips. Make them in three different colours so nobody gets confused.

SetWhat goes on the slipsWrite these
Set 1 — Source (say, yellow slips)Where the energy comes fromSun · Wind · Water · Food · Fuel · Electricity
Set 2 — Type (say, blue slips)What form the energy takesHeat · Light · Movement · Sound
Set 3 — Use (say, green slips)What that energy actually does for usDrying clothes · Lighting a bulb · Turning a turbine · Cooking food · Running · Helping plants grow · Moving a car · Ringing a bell

How to prepare them:

  1. Cut old paper or card into slips about the size of your palm.
  2. Write one word or draw one picture on each slip, in big letters.
  3. Make sure the numbers work out: for every source slip there must be a matching type slip and a matching use slip, so that every child finds a group of three.
  4. Shuffle all the slips together and hand out one to each student.
Tip for the teacher or the group leader: Plan the chains on a sheet of paper first. Then make the slips from that plan. If some children are left over, let them be the judges who check whether each chain makes sense.
Q2.
Step 1: Assigning a Role — Give each student one card, where they will either be a source of energy, a type of energy, or a use. Step 2: Walk Around and Find Your Match — Students should walk around the class trying to find the two others who complete their energy chain. Step 3: Present to Class — Once matched (source — type — use), each group should quickly explain their match to the class.
Answer

How to play, step by step:

  1. Every student takes one slip and reads it quietly. Do not show it around yet.
  2. All students stand up and walk about the class, saying their own word aloud — “Sun!”, “Heat!”, “Drying clothes!”
  3. Each student looks for the two others who complete the chain: one source, one type, one use.
  4. When three students think they belong together, they stand side by side in the right order — source first, then type, then use.
  5. Each group says its chain out loud to the class, in one sentence: “We are the heat of the Sun and we help to dry clothes.”
  6. The class checks the chain. If it does not make sense, the group breaks up and hunts again.
SOURCE Sun TYPE Heat USE Drying clothes Every chain must read in this order: where it comes from →what it is → what it does.
One completed energy chain. Every group of three should make a sentence like this.

All the chains that work. The first two are the book's own examples.

SourceType of energyUseThe sentence to say
SunHeatDrying clothes“We are the heat of the Sun and we help to dry clothes.”
WindMovementTurning a turbine to make electricity“We are the movement of the wind and we turn a turbine.”
SunLightHelping plants grow“We are the light of the Sun and we help plants make their food.”
FoodMovementRunning in the playground“We are the energy of food and we help a child run.”
FuelHeatCooking food“We are the heat of burning gas and we cook the dal.”
FuelMovementMoving a car“We are the energy of petrol and we move the car.”
ElectricityLightLighting a bulb“We are electricity turned into light and we light the bulb.”
ElectricitySoundRinging the school bell“We are electricity turned into sound and we ring the bell.”
WaterMovementTurning a gharaat to grind grain“We are the movement of flowing water and we grind the grain.”
What the game teaches: Energy is never just sitting still — it travels. It starts at a source, it appears as some type (heat, light, movement or sound), and it ends up doing a use for us. Once you can see that chain, you can explain almost anything around you: a fan, a bus, a bulb, a boiling pot, even your own running feet.
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