Some of the major functions of the parliament are as follows:
1. Legislative Functions: The Parliament makes laws on all subjects listed in the Union List. It can also make laws on subjects listed under the Concurrent List. In case there is any conflict or overlapping in the provisions existing in the Union and State enactment, the Union law prevails. In cases when an emergency has been declared, the Union Parliament can also make laws on subjects that fall within the State List.

2. Financial Control: Union Parliament has exclusive powers to provide ways and means through which revenue has to be raised for public services. To that end it imposes taxes and also ensures that the money sanctioned for expenditure to various departments of the government has been spent for the authorized purposes.
3. Providing and exercising control over Cabinet: Our Parliamentary system blends the legislative and the executive organs of the State in as much as the executive power is wielded by a group of Members of the Legislature who command majority in the Lok Sabha.
4. Critical Assessment of the Work of the Cabinet: The Parliament provides the forum through which is ensured that the Cabinet remains in power only as long as it commands majority support in the Lok Sabha which comprises elected representatives of the people. It is one of the most important functions of the Parliament to bring about discussions and critical assessments of the performance of the government departments.

The debates ensure that the weaknesses in terms of performance are brought to light and the Ministers and through them the entire executive machinery is kept on toes.

5. Role of opposition:The existence of opposition also ensures that the nation gets to know about the alternative points of view.

6. An organ of information: Parliament is the most powerful organ so far information about the functioning of the government is concerned. The information provided in the Houses is authoritative and Ministers are bound to provide information on matters of government when so desired by the members.

7. Constitutional Functions: The power to amend the Constitution vests with the Parliament. Constitutional amendments have to be passed by each house by a majority of total membership as well as by two-third majority of members present in voting. In some cases amendments need ratification from half of the Legislative assemblies of the States.

8. Judicial Functions: Parliament has the exclusive powers to impeach the President and remove judges of the Supreme Court and the High Court’s through a prescribed procedure. Parliament can also punish a person for contempt or defamation of the House.

9. Elective functions: Elected members of the Rajya Sabha and the Lok Sabha Constitute the Electoral College for the election of the Vice-President. Along with elected members of the State Legislatures they form the Electoral College for election to the office of the President. The Parliament can also by legislation create new States or make changes in the existing boundaries of the States.

Activity to show that iron is more reactive than copper:

i. Take an iron nail.

ii. Take a beaker and make a copper sulphate (white crystals) solution in it.

iii. Now dip the iron nail in the copper sulphate.

iv. Leave the dipped iron nail in the solution for a few minutes.

We will observe that the copper sulphate solution which is blue becomes green in colour. This means iron has displaced copper from its sulphate and formed a new compound, i.e., ferrous sulphate which is green in colour.

Rahat: In this method, buckets are knotted with rope on wheel and then bulls rotate the handle due to which wheel turned up and then water gets filled into the bucket and used for different purposes.

The combustion of fossil fuels like coal, petroleum, etc., not only produces energy but also many poisonous gases like carbon monoxide, sulphur dioxide, oxides of nitrogen as well as smoke particles. These gases accumulate in the atmosphere. Naturally, a lot of atmospheric pollution is caused by burning of these fossil fuels.

Also carbon particles remain suspended in air 

CO , CO₂ are green house gases. These have added to global warming .

Nora was a five year old girl.

Force can have any or all of the following effects on the object on which it is applied.

• Force can change the speed of an object (Batsman hitting a ball very hard)
• Force can change the direction of motion of an object (Batsman hitting a ball very hard)
• Force can change the shape of an object. (When an elastic is pulled hard, it breaks)
• Force can move an object from rest to a state of motion (Bowler picking up a ball and then bowling it)

Any two successive numbers/ integers are always co-prime: Take any consecutive number such as 2, 3 or 3, 4 or 5, 6 and so on; they have 1 as their HCF.