Unit - 7

Exploring
Science
01 The Solar System
A group of bodies that revolve around the sun forms the solar system. The
solar system is a part of the universe.
Read the sentence to remember the order of planets in the solar system.
My Very Eager Mother Just Served Us Noodles

Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune

Tick (3) the correct option.

1. Centre of our solar system:
(a) Sun (b) Moon
(c) Earth (d) Jupiter

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2. Largest planet in the solar system:
(a) Uranus (b) Jupiter
(c) Saturn (d) Earth
3. Hottest planet in the solar system:
(a) Mercury (b) Earth
(c) Mars (d) Venus

4. Evening star in the solar system:

(a) Moon (b) Jupiter
(c) Neptune (d) Venus
5. Brightest planet in the solar system:
(a) Mars (b) Sun
(c) Venus (d) Mercury

6. Nearest planet to Earth:

(a) Pluto (b) Mars
(c) Venus (d) Mercury

7. Sun is a:
(a) Star (b) Planet
(c) Comet (d) Meteor
8. Smallest planet in the solar system:
(a) Mars (b) Jupiter
(c) Mercury (d) Venus

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 02 About Our Bodies
Our body is made up of many organs that work together to keep us healthy
and active. Some parts of our body are on the outside, like our eyes, skin and
hands. They are called external organs. Other important parts are inside our
body, like the heart, brain and lungs. They are called internal organs.
Let us learn about the different internal organs and functions they perform.

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Tick (3) the correct option related to the functions of our internal
organs.
1. This organ helps us to think, learn and remember:
(a) Lungs (b) Bones
(c) Stomach (d) Brain
2. This organ pumps blood throughout our body:
(a) Heart (b) Lungs
(c) Liver (d) Large intestine
3. These organs help us in breathing:
(a) Liver (b) Lungs
(c) Brain (d) Heart
4. This organ helps us digest food by breaking it down into nutrients:
(a) Heart (b) Kidney
(c) Stomach (d) Lungs
5. The framework of bones is called:
(a) ribcage (b) skeleton
(c) muscles (d) skin
6. This is the largest internal organ in our body:
(a) Liver (b) Lungs
(c) Intestine (d) Kidney

Activity Time
Leadership and Responsibilities

Let us create an amazing human body puzzle together! Your teacher will
help choose teams to draw different body parts. Each team gets a big piece
of paper to draw their special section—like the head, arms, or inside parts.
Use bright colours and draw carefully. Try to label some simple body parts.
When everyone finishes, the leaders of each team will help join all the
pieces to make one giant human body poster! It'll be super fun to see how
our bodies are connected.

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 03 Living and Non-Living Things
The things surrounding us are classified in two categories—Living things
and Non-living things. Living things need air, water, food, home, etc., to live in,
whereas non-living things do not need them.
A. Tick (3) the correct option.
1. Choose a living thing from the pictures given below.

(a) (b)

(c) (d)

2. Choose the non-living thing from the pictures given below.

(a) (b)

(c) (d)

3. Which one is a characteristic of a living thing?

(a) Living things do not grow.
(b) Living things cannot move from one place to another.
(c) Living things need food to live.
(d) None of these.

4. ____________________ things can grow and change.

(a) Living things (b) Air
(c) Water (d) None of these

5. Living things need food, ____________________ and water to live.

(a) water (b) non-living
(c) air (d) move

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B. Classify the given words as living and non-living things.
Cow Hen Cat Dog River
Chair Books Stone Clothes Sheep

Living Things Non-Living Things

1.
_____________________________ _____________________________
2.
_____________________________ _____________________________
3.
_____________________________ _____________________________
4.
_____________________________ _____________________________
5.
_____________________________ _____________________________

C. Tick (3) the correct option.

1. A moving thing is a:
(a) Living thing (b) Non-living
(c) Can be both (d) None of the above

2. Are clouds living or non-living things?

(a) Living (b) Non-living
(c) Can be both (d) None of the above
3. This material is a man-made thing and is used to make erasers:
(a) Plastic (b) Wood
(c) Rubber (d) Silk
4. One of these is not a natural living thing:
(a) Mountain (b) Bird
(c) Rabbit (d) Ant

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 04 Parts of a Computer
A computer is an electronic device that helps us perform many tasks quickly and
easily. It can store lots of information and helps us find answers to our question.
A. Identify the parts of a computer and write their names in the blanks
using the given helpbox:
Monitor CPU Mouse
Speaker Printer Joystick
Headphone Pendrive Keyboard

1. _____________________ 2. _____________________ 3. ___________________

4. _____________________ 5. _____________________ 6. ___________________

7. _____________________ 8. _____________________ 9. ___________________

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B. Tick (3) the correct option.
1. Which output device displays the information on a screen?
(a) Scanner (b) Keyboard
(c) Cursor (d) Monitor

2. Which input device copies images from the paper into the computer?
(a) Speaker (b) Scanner
(c) Printer (d) Keyboard
3. Which is usually used for voice input in a computer?
(a) CPU (b) Speaker
(c) Headphone (d) Monitor
4. What do you use to type letters, numbers and symbols on the
computer?
(a) Mouse (b) Motherboard
(c) Keyboard (d) Monitor

5. Which is a printing device of the computer?

(a) Mouse (b) Printer
(c) Memory (d) Monitor
6. The small device that moves the cursor:
(a) Head Phone (b) Mouse
(c) Printer (d) Monitor

7. Who invented the computer?

(a) Charles Babbage (b) Gary Kildall
(c) Douglas Engelbart (d) James Gosling

8. ____________ is the brain of a computer.

(a) Mouse (b) CPU
(c) Monitor (d) Keyboard

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 05 Discoveries and Inventions
Discoveries and inventions have changed the way we live. They have helped
us solve many problems and made our lives easier.
Match the scientists to their inventions:
Scientists Inventions
1. Guglielmo Marconi a. Ball Point Pen

2. John Logic Baird b. Bicycle

3. Thomas Edison c. Diesel Engine

4. Rudolf Diesel d. Jet Engine

5. Charles Babbage e. Radio

6. Alexander Graham Bell f. Aeroplane

Wilber and Orville Wright

7. g. Telephone
(Wright Brothers)

8. Hans Von Ohain h. Computer

9. Kirkpatrik i. Television

John Loud j. Blub

Michael Faraday k. Barometer

Elisha Otis l. Telescope

Johannes Gutenberg n. Electronic Motor

Galileo Printing Press

Evangelista Torricelli o. Elevator/Lift

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06 Sources of Energy
There are different sources of energy that help us live comfortably.
Name the source of energy being used in each of these pictures using
the given helpbox:
Sun Wind Water
CNG Electricity Jet Fuel
Nuclear Energy Geothermal Energy Wood and Coal

1. ____________________ 2. ___________________ 3. ____________________

4. ___________________ 5. ____________________ 6. ___________________

7. ____________________ 8. ____________________ 9. ___________________

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 07 Revolutions and Colours
There have been great improvements in the fields of food and agriculture,
which are termed as revolutions. The revolutions are often associated with
specific colours to show their importance.
Look at the pictures below and match the correct revolutions with the
related products.

Revolutions Products

1. Black Pioneer Revolution a. Honey and Horticulture

2. Blue Revolution b. Eggs

3. Brown Revolution c. Fertiliser

4. Grey Revolution d. Petroleum

5. Green Revolution e. Milk (Dairy Farming)

6. White Revolution f. Jute

7. Silver Revolution g. Fish

8. Golden Revolution h. Oil seeds

9. Golden Fiber Revolution i. Agriculture

10. Yellow Revolution j. Leather, Cocoa

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 Current Affairs
List the current affairs that took place in the last two months in the
following domains:
Months
People _______ + _______

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Sports
______________________________________________________________________________________________________

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Literature
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Entertainment
______________________________________________________________________________________________________

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Other Activities
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Teacher's Signature

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