Grade 3 Syllabus for NSO
Plants and Animals
Different parts of a plant and their functions
Animals
Tag Archives: evs questions grade 3
Grade 3 Science (NSO) : Food Part 1 – Food Types
A look at the grade 2 lesson
Food can be divided into three types
Energy giving food
Give us energy to work. They contain carbohydrate and fats.
Carbohydrates
They are found in foods like rice, pasta, cassava, yam etc. when starchy foods are eaten and digested, simple sugars like glucose are obtained. It is this glucose that the body uses for energy.
There are two major types of carbohydrates:
1. Simple carbohydrates (Sugar)
- Fruits
- Milk
- White sugar you would find in a sugar bowl
- Chocolates
Grade 3 Science (NSO) : Food Part 2 – Methods of Cooking
Cooking of food
Cooking improves the flavor of food and also makes the food easier to chew and more digestible. Micro oirganisms present in the food are killed during cooking which makes the food safer to consume. Various methods of cooking are listed below :
Boiling
Involves cooking the food at the boiling temperature of water ie 100 degree centigrade.
Example : Eggs , potatoes etc
Advantages :
Grade 3 Science (NSO) : Earth and universe
A quick look at the Grade 1 lessons :
Weather and The Sky:GK questions on space
Weather and The Sky: Earth and Sky fundamentals
Solar system
Sun :
- It is a star.
- It gives us heat and light
- It is the main source of energy on the earth
- Eight planets and many heavenly bodies revolve around the sun.
Planets :
- Orbits the sun
- Has sufficient mass to be round, or nearly round
- Is not a satellite (moon) of another object
Grade 3 Science (NSO) : Birds
Bird, a warm-blooded vertebrate that lays eggs and has feathers and wings.
Type of beaks
Grade 3 Science (NSO) : Animals
A look at the grade 2 lessons :
Grade 2 science (NSO) : Animals
Animals and the way they eat
Herbivores : Animals like cows , buffaloes , sheep etc., that eat plants.
Carnivores : Animals like lions, tigers, etc., that prey on and eat other animals.
Omnivores : Animals like bears, crows etc., that eat both plants and animals.
Scavengers : Animals like vultures and jackals that eat dead and left over animals generally preyed on by carnivores.
Grade 3 Science (NSO) : Flower, fruit and seed
Before starting lets take a look at the Grade 2 lessons
Plants : Uses of different plants
Flower
Responsible for reproduction
Colour and fragarence of flowers attract insects who act as pollinators.
Flower parts that we eat :
Grade 3 Science(NSO):Plants : Stem
Stem
Stems are the aboveground structures that bear the plant’s leaves and flowers. The stem provides a host of services to the plant:
- It provides a pathway for transporting water up to the leaves, and moving the sugars produced in the leaves down to nourish the roots.
- It acts as a sturdy mast to hold up the leaves and help orient them for maximum exposure to sunlight.
- It can act as a storage site for carbohydrates.
Grade3 Science (NSO) : Plants :Roots
Plants :Roots
Root
Root is the underground part of the plants body. It fixes the plant within the soil and absorbs water and mineral nutrients from the soil. It also stores excess food.
Function of roots
- Roots attach the plant body to the ground. It provides support to the plant and helps in holding the plant firmly in the ground.
- Root hairs of the plant absorb water and mineral from the soil and pass it to the stem.
- Some roots like carrot, radish etc. store food.
- Root bind the soil which otherwise may be blown away by wind or washed away by water. Root prevents soil erosion.
