RANDOM FACTS QUIZ

The Editing Team

DID YOU KNOW?

Did you know, you used to be able to walk from the UK to Norway?

Did you know, some animals, such as Axolotls, can regrow limbs?

Did you know, there is a plant known as a ‘corpse flower’ that is carnivorous and releases an odour that smells like a rotting corpse?

Did you know, 50% of your DNA is made up of sequences from viruses?

JOKES?

A neutron walks into a bar and asks the bartender how much for a beer? The bartender replies, “for you, no charge.”

ex was very lone at a party. Someone else advised him to try integrating, and he replied, ‘I tried but it made no difference.’

REFERENCES:

Science Is Fun (@sciencefunn) • Instagram photos and videos

Memes Network (@memesnetworks) • Instagram photos and videos

TRY SOME EXAM QUESTIONS FROM THE 1930S

Oxford and Cambridge Schools Examination Board

School Certificate Examination

GENERAL SCIENCE 1.

Wednesday, december 6th, 1939, 2 hours

[Not more than six questions are to be attempted. These must be selected in such a way that at least one question is chosen from each section. All the questions carry equal marks. The answers to each of the three sections must be given up separately.]

section a. 1.Under what circumstances will a body float in a liquid? The specific gravity of ice is 0-92, and that of sea-water is 1-025. What is the minimum depth of sea-water in which an iceburg, cubical in shape and 50 metres long, will float? 2.Describe two methods of measuring atmospheric pressure. Why does an air-bubble become larger as it rises from the bottom to the top of a pond? 3.What is meant by surface tension? Describe two useful consequences of the phenomenon. 4.Explain the following observations: (a)Hoar-frost is not usually found under trees even when the fields around are covered with it;

(b)A note emitted by a vibrating tuning-fork has a different quality from a note of the same fundamental frequency emitted by a vibrating organ-pipe; (c)It is harder to drink a hot liquid from a silver cup than from one made of porcelain. 5.What is the difference between the magnetic properties of soft iron and hard steel? Explain how the characteristic properties of each are utilized.

6.Give an account, with diagrams, of one of the following instruments: (a)A sextant;

(b)A magnifying glass; (c)A projecting lantern. 7.Describe the fundamental principle of the dynamo, and a simple laboratory experiment to illustrate it.

What are the essential parts of a dynamo?

section b. 8.Explain how hydrogen and oxygen can be made by the electrolysis of dilute sulphuric acid. Draw a labelled diagram of the apparatus you would use.

9.How is lead obtained from its ores? Describe two physical and two chemical differences between lead and iron.

10.Describe experiments, one in each case, in which manganese dioxide is used (a) as a catalyst, (b) as an oxidizing agent. 11.Give an account of one method by which compounds of nitrogen can be obtained from the air. Why are such processes important? 12.Describe the preparation and properties of carbon dioxide. Explain two common uses of carbon dioxide.

section c. 13.Draw a longitudinal section of any one flower, naming the various parts. How is pollination secured? 14.Either give an account of the effect of wave action on (a) rocky shore, (b) sandy shore, (c) shingle beach. Or Explain carefully how new land may appear. 15.Explain the following: (a) milk goes sour, (b) cheese, if kept too long, develops into grubs, (c) jam “works” and becomes “bubbly”. 16.Describe the features of geological interest in any district known to you. 17.What do you understand by transpiration? What are the functions of the transpiration stream?

18.What is meant by the term “soil erosion”? Give an example of the phenomenon. What steps can be taken to combat it?