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Chapters
1: Natural Resources – Air, Water and Land
2: The Living World
3: Diversity in Living Things and their Classification
4: Disaster Management
Part 2
▶ 5: Substances in the Surroundings—Their States and Properties
6: Substances in Daily Use
7: Nutrition and Diet
8: Our Skeletal System and the Skin
Part 3
9: Motion and Types of Motion
10: Force and Types of Force
11: Work and Energy
12: Simple Machines
Part 4
13: Sound
14: Light and the Formation of Shadows
15: Fun with Magnets
16: The Universe
![Balbharati solutions for General Science Integrated [English] Standard 6 Maharashtra State Board chapter 5 - Substances in the Surroundings—Their States and Properties - Shaalaa.com](/images/general-science-integrated-english-standard-6-maharashtra-state-board_6:16ccdac16bb449e39ef419deb5dc6b8d.jpg "Balbharati solutions for General Science Integrated [English] Standard 6 Maharashtra State Board chapter 5 - Substances in the Surroundings—Their States and Properties")
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Solutions for Chapter 5: Substances in the Surroundings—Their States and Properties
Below listed, you can find solutions for Chapter 5 of Maharashtra State Board Balbharati for General Science Integrated [English] Standard 6 Maharashtra State Board.
Balbharati solutions for General Science Integrated [English] Standard 6 Maharashtra State Board 5 Substances in the Surroundings—Their States and Properties Intext Questions [Pages 65 - 72]
Can you recall?
Name the solid, liquid and gaseous states of water.
Let's try this.
Take pieces of wax in a bowl and heat them on a candle or spirit lamp.
- How do the pieces of wax change?
- What was the initial state of wax?
- What did it get converted into?
Now keep the same bowl in cold water. What happens?
Con you tell?
Read this list of substances: Spirit, camphor, petrol, ghee, coconut oil, naphthalene balls, and ammonium chloride (navsagar).
- Which ones freeze in winter?
- Which liquid have you seen change into a vapour?
- Which solids directly change into the gaseous state?
What do we learn from this?
Let's try this.
Take some water in a beaker and place a thermometer in it. Heat the beaker on a spirit lamp. Note the boiling point of water. Repeat the activity, adding salt or sugar to the water and note the boiling point again. What do you infer from it?
Use your brain power
On opening a box of camphor, its smell spreads all around. Why does this happen?
How will you identify the following?
A glass: Is it made of plastic, steel or glass?
How will you identify the following?
A rod: Iron or aluminium?
How will you identify the following?
A door: Wooden or glass?
How will you identify the following?
A white powder: Salt or chalk powder?
Can you tell?
Identify the objects shown in the figure. From which substances are they made? What are these substances called as a group?
Let's try this.
Take a small piece of copper or aluminium wire or a small nail. Hammer it repeatedly. What do you observe?
Can you tell?
Why are the electric boards fitted on the wall made of plastic or wood?
The handle of a cooker is made of plastic. Why?
Balbharati solutions for General Science Integrated [English] Standard 6 Maharashtra State Board 5 Substances in the Surroundings—Their States and Properties Exercise [Page 74]
In the paragraph below, write ‘solid’, ‘liquid’ or ‘gas’ in each of the brackets depending on the substance referred to just before.
On a bright sunny day, Riya and Gargi are playing with a ball ( ) in the park. Gargi feels thirsty. So, Riya brings tender coconut water ( ) for her. At the same time, a strong breeze ( ) starts blowing and it also begins to rain ( ). They run back into the house ( ), change their clothes ( ), and then their mother gives them a cup ( ) of hot milk ( ) to drink.
Discuss.
Riya pours some water from her bottle into another bottle. Does it change the shape of the water?
Halima picks up a small stone from the ground and puts it in the water in a dish. Does the shape of the stone change?
Write the properties of this substance.
Water
Write the properties of this substance.
Glass
Write the properties of this substance.
Chalk
Write the properties of this substance.
Iron ball
Write the properties of this substance.
Sugar
Write the properties of this substance.
Salt
Write the properties of this substance.
Flour
Write the properties of this substance.
Coal
Write the properties of this substance.
Soil
Write the properties of this substance.
Pen
Write the properties of this substance.
Ink
Write the properties of this substance.
Soap
What is sublimation?
Write the names of everyday substances that sublimate.
What is it made from? Why?
A sickle to cut sugarcane.
What is it made from? Why?
The sheets used for roofing.
What is it made from? Why?
A screwdriver
What is it made from? Why?
A pair of tongs.
What is it made from? Why?
Electric cables
What is it made from? Why?
Ornaments
What is it made from? Why?
Pots and pans
What will happen if....? And why?
Nails are made of plastic.
What will happen if....? And why?
A bell is made of wood.
What will happen if....? And why?
Rubber is not fitted on a pair of tongs.
What will happen if....? And why?
A knife is made of wood.
What will happen if....? And why?
An axe is made of rubber.
Who am I?
I’m found in a thermometer, I measure your temperature.
Who am I?
I make things hot or cold.
Who am I?
I have no shape whatsoever!
Who am I?
I dissolve in water, but not in kerosene.
Why does this happen?
Coconut oil thickens in winter.
Why does this happen?
Kerosene left open in a dish disappears.
Why does this happen?
The fragrance of incense sticks lighted in one corner of a room spreads to the other corner.
Why does this happen?
What you see in the picture.
Activity:
Find out how the big statues of wax are made.
Visit a jeweller's shop and find out how ornaments are made.
Solutions for 5: Substances in the Surroundings—Their States and Properties
Balbharati solutions for General Science Integrated [English] Standard 6 Maharashtra State Board chapter 5 - Substances in the Surroundings—Their States and Properties
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Concepts covered in General Science Integrated [English] Standard 6 Maharashtra State Board chapter 5 Substances in the Surroundings—Their States and Properties are Change of State, Matter (Substance), States of Matter, Vaporisation or Boiling, Concept of Freezing (Solidification), Properties of substances, Physical Properties of Metals, Various uses of changes in physical state, Sublimation, The Temperature and a Thermometer.
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