Sorting Materials into Groups Class 6 Revision Notes Science Chapter 4

Sorting Materials into Groups Class 6 Notes Science Chapter 4.

We see different kinds of objects in our daily life like toy, pen , furniture, etc. If we are going to sorting these objects then we found that Each objects is made up of different materials . some are made up from wood , some are from iron ,some are from gold , aluminium ,etc.

One objects can be made up from different materials for example - plates is made up from plastic, aluminium , steel ,glass.

Even one material can be used to make different objects for example- wood is used to make table ,door, windows, wooden box ,etc.

All materials have different and it's its own properties for example some materials are soft whereas some are hard, some are soluble in water whereas some are insoluble. According to this properties materials are used to make an object.

Properties of material

Appearance

Materials looks very different from each other.

If we are looking around us then we find that some objects are shining whereas some are not. Some objects like iron lose their shine with time due to the action of air with moisture.

Hardness

Some materials are hard to compress while some are easily compress.

Those materials which are easy to compress is called soft materials.

Those are hard to compress is called hard materials.

Both hard and soft is used to make an object according to our needs.

Soluble and insoluble

Some materials have a soluble properties. These materials get easily dissolved in water. Like sugar, salt.

And some have insoluble properties and they didn't get dissolved in water . For example - sand , oil ,etc.

Objects may float or sink in water.

As we read some materials or objects doesn't dissolved in water as these objects may be sink or float in water. For example plastic bag or plastic plates floats on water whereas iron key, or needle get sink in water.

Transparency

As we look around ,we found some materials through which we cannot see . We also found that we can see clearly through materials . Whereas some materials through which we can see but not clearly.

So the material through which we can see clearly is called transparent.

The material through which we cannot see is called opaque object.

The material through which we can see but not clearly is called translucent.

According to these properties materials can be used to make different objects.

Nuro teach always with you.

Comments

N.C.E.R.T class 6 Geography Chapter-1 .The Earth in the Solar System Class 6 Notes

CHAPTER- 1 The Earth in the Solar System Class 6 Notes Geography Chapter 1 THE EARTH IN THE SOLAR SYSTEM The whole sky is filled with tiny objects some are bright and some are dim. The object we see in night are moon, stars ,etc. Poornima – We can see a full moon once a month. It is Full moon night or Poornima . Amavasya- we cannot see the moon at all once a moon . It is a New moon night or Amavasya. The sun, the moon and all those objects shining in the night sky are called celestial bodies. The sun and the other stars are hot ball of gases. They look very tiny because they are millions of kilometre far from earth. The sun look large then other stars because it is not that much far from earth. While watching the night sky, you may notice various patterns formed by different groups of stars. These are called constellations . Example - Ursa Major , big bear, Saptarishi , Leo, etc. The North star indicates the north direction. It is also called the Pol...

N.C.R.T. Solution for class 6 science Chapter-2. Components of food.

N.C.R.T. Solution for class 6 science Chapter-2. Components of food. N.C.R.T. Solution for class 6 science Chapter-2. Components of food. Textbook solution Q.1 Name the major nutrients in our food. Ans.- Carbohydrates, protein , fats, vitamins and minerals are the major nutrients in our body. Q.2 Name the following. a). The nutrients which mainly give energy to our body. Ans. Carbohydrates. b). The nutrients that are needed for the growth and maintenance of our body. Ans. Protein. c ). A vitamin required for maintaining good eyesight. Ans. Vitamin A d). A minerals that is required for keeping our bones healthy. Ans. Calcium Q3.) Name two food each rich in . a). Fats Ans. Ghee, butter. b). Starch Ans. Raw potatoes, Rice. c). Dietary fibres Ans. Spinach, carrot. d). Protein Ans. Milk, fish. Q4). Tick (✓) the statements that are correct, cross (❌)those which are incorrect. a). By eating rice alone, we can fulfill nutritional requirement of our body. (❌). b). D...

Notes of Ch 1 Chemical Reactions and Equations| Class 10th Science

Notes of Ch 1 Chemical Reactions and Equations| Class 10th Science Introduction → Most of the substance around us undergoes various changes. Some of these changes are temporary with no new substance being formed. They are called physical changes. → In certain other changes the new substance formed in which the reactant or the parent loses its identity to form new substance called product. These changes are permanent changes as we won’t get the reactant back. Chemical Reaction → Chemical reaction is the process by which two or more substance react with each other to form new substance with different properties. → These are the following changes to determine that the chemical reaction has taken place: (i) Change in state (ii) Change in colour (iii) Evolution of gas (iv) Change in temperature Chemical Equation → A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side ...

Nuro Teach

Search This Blog