Skip to main content

6 Class science notes-Ch-6-Changes Around Us

6 Class science notes-Ch-6-Changes Around Us

A change can bring different kinds of effect on the things around us. Some of the effects brought are permanent in nature which cannot be reversed. Some effects are brought into position, shape, size or state of the things; these effects are temporary in nature.
Changes caused by heating
Some objects simply get hot, but no other change takes place – When we drink hot milk or coffee, from a cup, we feel that the cup is hot. Although it doesn’t change the state of the cup take place.
Some objects get hot and expand – The metal gets heated and increase in size, on cooling the metal got contracted and regained its original size.
Some objects get hot and burn – If we will burn a candle it will heat and melt away, this change is irreversible in nature as we cannot get the candle back in shape.
Some objects change their state – When ice is heated it changes into water, when water is heated it changes into steam. These changes can be easily reversed hence they are called reversible changes.
Changes caused by Pressure or Force
When you fill air into a balloon, by applying pressure to your lungs, the shape and size of the balloon changes. If we continue filling more air, then a stage will come when the balloon bursts and its shape changes again. The tube within the tyre changes its shape and fits completely.
Make your learning fun with Takshila Learning. We offer a complete package which includes interesting animated videos, sample papers, worksheets, virtual experiments, encyclopedia and much more. For details visit Nursery to Class12 Classes.
.
Labels:

Comments

Post a Comment

Thank you we will contact ASAP.

Popular posts from this blog

Magnetic and non-magnetic material Class 6 Science

Magnetic and non-magnetic material  Class 6 Science A magnet is a substance that is drawn to certain magnetic materials like iron, cobalt, and nickel. Magnets have the ability to draw iron to them. Natural magnets are rocks that naturally draw iron. Non-magnetic materials include things like wood, rubber, coins, feathers, leather, etc. that are not drawn to iron. Magnet characteristics It pulls magnetic materials, such as iron. The magnet's two ends are referred to as its poles. The magnet's diametrically opposed poles are drawn together. Heating, hammering, or dropping causes it to lose its characteristics. On the basis of properties types of Magnets Temporary magnets are those magnets that are magnetic for only a little duration. Typically, iron, cobalt, or nickel are used to make them. When they are close to the powerful magnet, they act like a magnet. When they are yanked away from the powerful magnet, they stop being magnetic. Permanent magnets are magnets that have magne...
Post a Comment
Read more

What are Noble Gases? Example and noble gases name

What are Noble Gases? Example and noble gases name Noble Gases Noble gases, sometimes known as inert gases or erosions, are part of the modern periodic table's 18th group. This group is made up of the following individuals: Helium is a kind of gas (He) Neon (Ne) Argon is a gas (Ar) Krypton  (Kr) Xenon is a kind of xenon gas (Xe) Radon is a gas that can cause cancer (Rn) Noble gases exist in a gaseous state under typical temperature and pressure conditions. Because all noble gases have stable electronic structures, they have very little chemical reactivity. They are monoatomic gases that do not readily form molecules. 'ns2np6' represents the basic electrical configuration of noble gases. As a result, noble gases' outermost valence shells can be deemed 'complete.' The chemical inertness of the group of 18 elements is due to this. Because of the stability of certain elements, these gases form a group. These stable elements' crusts are totally filled. Regardles...
Post a Comment
Read more

CS Executive

At  Takshila Learning  we provide you Video Lecture of best faculties in India. We assure you not only the best quality of videos but also best content. Our teachers way of teaching, presentation and explanation is very simple and unique. Why Takshila Learning? We can give you 10 top reasons why you should take CS Executive Online Video Coaching Classes Lectures from Takshila Learnings. We are providing online classes of CS Executive for last 5 years (almost  oldest in the market ) We pick  best teachers  for every subjects. We don’t provide updates only with old videos. Infact we provide  new updated classes  for every attempt Our teachers update notes for every attempt. Videos and notes are  highly exams oriented . Our teachers  cover last 5 attempts question papers  along with ICSI Course content. Our video classes  includes live practical examples  to help you understand easily. Our structure of our  fee ...
Post a Comment
Read more