Class 3-science-pt3-rev-ws-for-uploading

Class 3-science-pt3-rev-ws-for-uploading

1. SENTIA THE GLOBAL SCHOOL
Class III PT3 PRACTICE WORKSHEET – SCIENCE
Lesson–8 Worksheet-1
I. Fill in the blanks.
1. Birds have ________ kinds of feathers.
2. _______ have talons.
3. Birds can rest on branches of trees are called _______ birds.
4. Some birds like cranes and herons are called ________ birds.
5. ________ birds make a hanging nest.
6. A ________ has a beak with two holes.
7. Humming birds have ________ beak.

II. Match the columns.
A B
Down feathers Hen
Talons Webbed feet
Scratching feet Young ones of birds
Beak Keep the body warm
Goose Eagle
Nestling Help the bird to eat

III. Tick the correct option.
1. A pigeon has _______ beak.
a. Short and hard c. Flat and broad
b. Short and hooked d. Long and pointed
2. Which of these feathers help the birds to fly?
a. Down feathers b. Talons c. Body feathers d. Flight feathers
3. Birds that have climbing feet
a. Woodpecker b. Duck c. Eagle d. Hen
4. Which birds make their nest with stone and pebbles?
a. Weaver bird c. Penguin c. Tailor bird d. Crow

IV. Answer these short answer questions.
1. What are wading birds?
2. Why do birds have different kinds of beaks?
3. Birds have which kind of body?
4. How do birds fly?
5. How does a beak help the birds?
6. Which kind of feathers give shape and colour to bird’s body?

V. Answer these long answer questions.
1. Describe the different kinds of feathers found in birds.
2. Describe any three special nests of birds.
3. Why do birds build nests? Name any three materials that birds use to build nests.
4. List the different kinds of beaks of birds and their special features.


Lesson–9 Worksheet-2
I.Write True or False.
1. Incisors are also called biting teeth [____________]
2. Adults have permanent teeth that are 20 in numbers [____________]
3. Premolars are 4 in numbers[____________]

2. 4. Carnivores have sharp and strong canines [____________]
5. We should visit dentist regularly to check for cavities [____________]

II.Fill in the blanks.
1. Tearing teeth are called ………
2. A person we should visit for the check up of our teeth ……..
3. Tiny holes called …….. are formed in teeth if we do not keep them clean.
4. We have …….. incisors in our teeth.
5. A yellow sticky substance on teeth is called ……….

III.Answer these short answer questions.
1. What is plaque?
2. How many teeth are present in permanent set?
3. Why milk teeth are called temporary teeth?
4. What are cavities?
5. What are premolars?

IV.Answer these long answer questions.
1. Differentiate between permanent set of teeth and temporary set of teeth.
2. Describe the features of different types of teeth that we have.
3. What is the difference between teeth of herbivores and carnivores?
4. How can we take care of our teeth?



Lesson–10 Worksheet-3
I. Give one-word answer.
1. Something used to measure heaviness of an object _________
2. A fixed quantity that is used as a standard for measuring things _________
3. Something used to measure how tall we are ____________
4. A unit of measuring time __________

II. Fill in the blanks.
1. _______ is measured using instrument such as weighing balance.
2. In earlier times people used _________for measuring things.
3. We need _______ to find our the length of the cloth.
4. One kilogram is equal to _________ grams.
5. _________ is the measurement of the interval between two events.
6. The most common unit for measuring heavier objects is ______

III. Answer these short answer questions.
1. What is unit?
2. Name four measures that were used to measure length in early days.
3. How does a vegetable vendor measure the mass of the potatoes he is selling?
4. Name the unit for measuring a small quantity and a large quantity of each of the
following:
A. Time B. Mass
5. Which unit is used to measure long distances?


IV. Answer these long answer questions.
1. Why is it important to have a unit for measurement?
2. What is length? What is difference between length and height? Name different units for
measuring length and height.