Last updated on April 8th, 2023 at 02:54 pm
Online Test for Class 4 Science – Set 4
National Science Olympiad Sample Papers class 4 explanation
Que 1 Solution
Carnivorous plants like Venus flytrap and Pitcher plant grow in Nitrogen poor soil so P is correct.
In marshy area plant, roots grow above the soil so Q is also correct
In the desert, leaves are reduced to spines
So every statement is correct and then the correct option is D
Que 2 Solution
The housefly has 4 stages in its life cycle while the cockroach has 3 stages Nymphs hatch and undergo several molts.
Que 3 Solution
Carbohydrates and fats are energy giving food, proteins are bodybuilding food and vitamin and minerals are protective foods.
Que 4 Solution
The costume is related to Gujarat and West Bengal, Gujarat dress is Chania choli and angrakha while the west Bengal costume is sari for women and kurta lungi for men.
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Food and Nutrients [Our Basic nee Q & A]
Que 5 Solution
CANNING is the food preservative method,In this method foods are preserved in Jars.
Que 6 Solution
In the small intestine, food is digested and absorbed and in the large intestine, the water is absorbed and removes the body waste through the anus.
Que 7 Solution
The ball which is at the highest point has the highest potential energy.
Que 8 Solution
After putting block S in the beaker the water level rises very low so S has a low volume.
Que 9 Solution
Due to hollow bones, birds can fly easily.
Adaptation from protection from enemies- camouflage ex -chameleon
For eating flesh – need well-developed canines to tear flesh