8TH CLASS SCIENCE PAPER 2018 JKBOSE PDF DOWNLOAD

8TH CLASS SCIENCE PAPER 2018 JKBOSE PDF DOWNLOAD

8TH CLASS SCIENCE PAPER 2018 JKBOSE PDF DOWNLOAD

Section A

What are sex hormones? Why are they named so. State their functions.

Or

Why do meteors burn on entering into the atmosphere?

Explain circumstances leading to acid rain. How does acid rain affect us?

Or

Define adolescence. What are the changes which take place in the body at puberty.

Section B

Why is the surface of belt made rough?

Differentiate between metals and non-metals.

Write notes on

1. Adam’s apple     b) menstruation

Describe the threat to the beauty of the Taj Mahal.

Section C

What is a planet. Name any one planet.

Draw a labelled diagram of animal cell.’Define a cell and a tissue.

What happen when a glass rod is rubbed with a piece of silk cloth?

Name the metals present in Chlorophyll and Haemoglobin.

What is global warming?

Write any two ways in which water get contaminated.

OR