Science

CBSE class 7 Science syllabus, question papers, online tests and important questions as per CBSE syllabus. Notes, test papers and school exam question papers with solutions. Main topics are Nutrition in Plants, Nutrition in Animals, Fibre to Fabric, Heat, Acids, Bases and Salts, Physical and Chemical Changes, Weather, Climate and Adaptations of Animals to Climate, Winds, Storms and Cyclones, Soil, Respiration in Organisms, Transportation in Animals and Plants, Reproduction in Plants, Motion and Time, Electric Current and its Effects, Light, Water: A Precious Resource, Forests: Our Lifeline, Waste-water Story

1. Food

Food from where
How do plants get their food?

Utilization of food
How do plants and animals utilize their food?

2. Materials

Materials of daily use
Do some of our clothes come from animal sources?
Which are these animals?
Who rears them? Which parts of the animals yield the yarn? How is the yarn extracted?
What kinds of clothes help us to keep warm? What is heat?
What is the meaning of ‘cool’/‘cold’ and ‘warm’ ‘hot’?
How does heat flow from/to our body to/ from the surroundings?

Different kinds of materials
Why does turmeric stain become red on applying soap?

How things change/ react with one another What gets deposited on a tawa/khurpi /kudal if left in a moist state?
Why does the exposed surface of a cut brinjal become black?
Why is seawater salty? Is it possible to separate salt from seawater?

3. The World of the Living
Surroundings affect the living
Why are nights cooler? How does having winters and summers affect soil? Are all soils similar? Can we make a pot with sand? Is soil similar when you dig into the ground? What happens to water when it falls on the cemented/ bare ground?

The breath of life
Why do we/animals breathe?
Do plants also breathe?
Do they also respire? How do plants/ animals live in water?

Movement of substances
How does water move in plants?
How is food transported in plants? Why do animals drink water?
Why do we sweat? Why and how is there blood in all parts of the body?
Why is blood red?
Do all animals have blood?
What is there in urine?

Multiplication in plants
Why are some plant parts like potato, onion swollen – are they of any use to the plants? What is the function of flowers?
How are fruits and seeds formed?
How are they dispersed?

4. Moving Things, People and Ideas Moving objects
Why do people feel the need to measure time? How do we know how fast something is moving?

5.How Things Work
Electric current and circuits
How can we conveniently represent an electric circuit?
Why does a bulb get hot?
How does a fuse work? How does the current in a wire affect the direction of a compass needle?
What is an electromagnet?
How does an electric bell work?

6. Natural Phenomena
Rain, thunder and lightning
What causes storms? What are the effects of storms?
Why are roofs blown off?

Light
Can we see a source of light through a bent tube?
How can we throw sunlight on a wall?
What things give images that are magnified or diminished in size?
How can we make a colored disc appear white?

7. Natural Resources
Scarcity of water Where and how do you get water for your domestic needs?
Is it enough?
Is there enough water for agricultural needs? What happens to plants when there is not enough water for plants?
Where does a plant go when it dies?

Forest products
What are the products we get from forests? Do other animals also benefit from forests? What will happen if forests disappear?
Waste Management Where does dirty water from your house go?
Have you seen a drain? Does the water stand in it sometimes?
Does this have any harmful effect?