Semester (Science, English, Maths) Year 9-10 2019

His mother’s plans for his education ...

• Were that he should have the best.

• Were halted by his father's death.

• Were ruined by the fire.

• Started because of his great scientific promise.

To complete his degree, Mendeleev ...

• Was helped by his mother.

• Attended St Petersburg University.

• Made good progress.

• Was helped by teachers and students.

Mendeleev arranged elements by their weight...

• As Dalton had proposed.

• And grouped them by mass.

• And grouped them by their properties.

• And organized them by colour.

He predicted new elements would be found ...

• Because there were gaps in his table. 

• Within the next three years.

• By deducing their properties.

• To provide support for his ideas.

Mendeleev resigned from the university because ...

• He was getting too old.

• He became Director of the Bureau of Weights and Measures.

• He had caught pneumonia.

• Of his politics.

Isotopes are atoms of an element ... .

• With the same number of protons but different number of neutrons.

• That are radioactive.

• With a magnetic charge.

• With the same number of electrons but different numbers of protons.

A(n)  ___________ is a simple, pure substance that cannot be broken down further into a more simpler kind of substance.

• Alloy

• Compound

• Element

• Crystal

Is Nitrogen a good conductor of electricity?

• Yes, it is.

• It’s an insulator in normal temperature, but becomes a conductor if liquified

• Not at all! Nitrogen is an insulator

• Yes, in most situations.

A chlorine atom attains an octet by

• Gaining one electron

• Gaining eight electrons

• Losing one electron

• Losing five electrons

An atom has 9 protons and 10 neutrons. Its mass number is ...

• 1

• 19

• 9

• 10

An element in Period 3, Group 7 has ...

• 7 electrons as total, 3 of them in its valence layer

• 3 electrons in its valence layer and 7 energy levels

• 3 electrons in its valence layer and 4 energy levels

• 7 electrons in its valence layer and 3 energy levels

Which elements are the least reactive?

• Helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn)

• Florine (F), Chlorine(Cl), Bromine(Br) and Iodine(I).

• The alkali metals: lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs).

• Transition metals, such as: chromium(Cr), manganese(Mn), iron(Fe), cobalt(Co), nickel(Ni) and copper(Cu).

Which metal is the best conductor of electricity? 

• Iron

• Copper

• Silver

• Gold

Atoms with the same elements with different numbers of neutrons are called .... .

• Isomers.

• Metalloids.

• Isotopes.

• Polymers.

Which elements are liquids in normal temperature?

• Florine, Chlorine, Bromine and Iodine.

• Only Chlorine, Bromine.

• Only Bromine and Mercury.

• No elements are liquids in normal temperature.

Hydrogen atom has just one electron located at the first energy layer (orbit) whose capacity is 2 electrons. Therefore hydrogen is considered as:

• A non-metal

• A halogen (like Florine, Chlorine, Bromine and Iodine), because it’s like the halogens, lacks for just one electron to complete its valence shell (outer shell).

• An alkali metal (like lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs)), because it’s like them, possess just one electron at its valence shell.

• Both as a halogen and an alkali metal; it has a dual nature.

Choose one fact about Carbon monoxide that is not correct.

• It is part of the volcanic gases.

• It is dangerous and can cause massive suicide of whales.

• It is used in food industry for meat colouring.

• It is used to increase agricultural productivity.

Choose one fact about Silicon that is not correct.

• The crystal structure of this substance is the same as that of diamond.

• It is used as a conductor/semiconductor.

• This is the most common chemical element on Earth after oxygen.

• It is part of the river sand.

Is it true or false? Substances consisting of two elements, one of which is oxygen are called Oxides.

• True

• False

Is it true or false? Distilled water does not contain impurities.

• True

• False

What is the molar volume of any gas? 

• 2 l ∕ mol

• 2.4 l ∕ mol

• 22.4 l ∕ mol

• 4.2 l ∕ mol

 Unit of measurement of the amount of a substance is called a ... .

• Gram

• Kilogram

• Mole

• Litre

What are the soluble bases called?

• Salt

• Solution

• Alkali

• Acid

Suppose a ufologist recently reported a strange object, which he described as being in the shape of a quasi-pyramid, hovering over a cornfield. If you add the number of edges this figure has to its number of faces, what total do you arrive at?

• 28

• 46

• 36

• 38

In 2008 Steven Hawking's Questioning the universe  video was uploaded to a website where viewers can vote if they like or dislike the video. The video begins with a score of 0, and the score increases by 1 for each like vote and decreases by 1 for each dislike vote. After several minutes the video had a score of 90, and that 65% of the votes cast on his video were like votes. How many votes had been cast on Hawkins' video at that point?

• 200

• 300

• 400

• 500

Hawking wasn't the best student at school. Despite his average grades, both his teachers and his peers seemed to understand that they had a future genius among them, evidenced by the fact that his nickname was "Einstein". Once his Physics' teacher was grading tests of the 15 students in his class and found that when he graded everyone's test except Hawking's, the average grade for the class was 80%. After he graded Hawking's test, the test average became 81%. What was Hawking's score on the test?

• 85

• 91

• 94

• 95

It was discovered by Isaac Newton.  ________

Antoine Lavoisier is often called the father of this branch of science. ________

James Watson and Francis Crick discovered the structure of this. ________

A Swedish chemist and inventor who invented dynamite. He/she held more than 350 patents, but he/she is more famous for establishing the awards. They are widely regarded as the most prestigious in the fields of chemistry, physics, literature, medicine and peace.

• Louis Pasteur (1822-1895)

• Niels Bohr (1885 –1962)

• Alfred Nobel (1833 - 1896)

• Marie Curie (1867-1934)

• Dmitri Mendeleev (1834 - 1907)

• Nikola Tesla (1856 –1943)

An inventor, electrical engineer, mechanical engineer and physicist. He/she registered more than 300 patents and best known for the contributions to the design of the modern alternating current (AC) electricity supply system.  He/she is often called one of history’s most important inventors whose discoveries were way ahead of the time and continue to influence technology today.

• Louis Pasteur (1822-1895)

• Niels Bohr (1885 –1962)

• Alfred Nobel (1833 - 1896)

• Marie Curie (1867-1934)

• Dmitri Mendeleev (1834 - 1907)

• Nikola Tesla (1856 –1943)

He/she was a Polish chemist who coined the term radioactivity. He/she also discovered the elements polonium and radium. The unit for measuring radioactivity is named after this scientist.

• Louis Pasteur (1822-1895)

• Niels Bohr (1885 –1962)

• Alfred Nobel (1833 - 1896)

• Marie Curie (1867-1934)

• Dmitri Mendeleev (1834 - 1907)

• Nikola Tesla (1856 –1943)

A French chemist and microbiologist who is best known for the discovery of vaccinations, pasteurization, and proving that germs cause disease. The discoveries of this scientist led to an understanding of microbes and diseases that has helped to save millions and millions of lives.

• Louis Pasteur (1822-1895)

• Niels Bohr (1885 –1962)

• Alfred Nobel (1833 - 1896)

• Marie Curie (1867-1934)

• Dmitri Mendeleev (1834 - 1907)

• Nikola Tesla (1856 –1943)

Which one do you like?

• Nikola Tesla (1856 –1943)

• Louis Pasteur (1822-1895)

• Niels Bohr (1885 –1962)

• Alfred Nobel (1833 - 1896)

• Marie Curie (1867-1934)

The contemporaries of this scientist called him/her "a chemist of genius, first-class physicist, a fruitful researcher in the fields of hydrodynamics, meteorology, geology, certain branches of chemical technology, a thorough expert of chemical industry and industry in general, and an original thinker in the field of economy". He/she became famous for the first periodic table of the elements that made possible to predict the discovery of many more elements. 

• Louis Pasteur (1822-1895)

• Niels Bohr (1885 –1962)

• Alfred Nobel (1833 - 1896)

• Marie Curie (1867-1934)

• Dmitri Mendeleev (1834 - 1907)

• Nikola Tesla (1856 –1943)

Everyone knows the story of Archimedes and how he was given the task of finding out the true gold content of the king's crown. For a long time, he was at a ________ (LOSE) to know how to do it. Then, one day when he was stepping into his bath, he noticed that some of the water overflowed onto the floor.

Instantly, he was struck by the realisation that a crown made of pure gold would displace a different amount of water from one made of an alloy. Overcome with ________ (EXCITE) at having found the solution, he ran into the street shouting ‘Eureka’, or ‘I have found it.’

The parable illustrates the way in which new ideas or solutions to problems sometimes seem to come to us suddenly, as a ________ (MIRACLE) flash of insight.

Similar moments are claimed for Descartes’ ________ (INVENT) of co-ordinates and Crick and Watson’s discovery of DNA.

Of course, the long and laborious processes of thought and logical ________ (DEDUCE) cannot be ignored. On the contrary. Eureka moments seem to occur only after a long period of consideration of the problem in hand.

The only way to progress is by synthesising what they already know with totally different information. When the thinker is involved with something apparently ________ (DIFFER) the brain reaches out and makes a connection between this and the problem.

To the thinker, the solution seems to have come like a flash of ________ (INSPIRE), out of nowhere.  

James Clerk Maxwell A. Working with electromagnetic radiation, Maxwell opened the door to many inventions which we all use every day: microwaves, televisions, radio, radar, and thermal imaging. His work also led to developments in space exploration, photography, engineering, and nuclear energy. B. Born in 1831 in Edinburgh, James attended the Edinburgh Academy as a boy, then moved on the Universities of Edinburgh and Cambridge. At just 25 years of age, he became Professor of Physics at Marischal College, Aberdeen, and later became the Professor of Experimental Physics at Cambridge. He stayed at this location for the next fifty years, and developed many important aspects of Physics. C. However, his most notable achievement was his work with electricity and magnetic lines of force. Between the years 1864 and 1873, he wrote mathematical equations explaining the behaviour of magnetic fields and electric fields. D. A deeply religious man, James strongly opposed Darwin’s theory of evolution, which was just becoming popular. He died of abdominal cancer at age 48, in the year 1879. In 1977, the James Clerk Maxwell Foundation was formed in Scotland to honor this important scientist. E. James Clerk Maxwell (1831-1879) was one of the greatest scientists in history. He was a great inspiration to future scientists, including Einstein, who once said “The special theory of relativity owes its origins to Maxwell’s equations of the electromagnetic field.” F. The first of Maxwell’s contributions to these fields was the study of Saturn’s rings. He showed that the rings were made of numerous small solid particles. He then studied molecules of gases, formulating the Maxwell- Boltzman kinetic theory of gases. Working independently of Ludwig Boltzman, who also contributed to the theory, he determined that the temperature of molecules affects how they move.

• BAFDCE

• EBFACD

• EAFCBD

• EBAFCD

To prove his theory of the Big Bang Stephen Hawking solved 15 complicated equations, one at a time. The first equation took him 1 day to solve, the second took him 2 days to solve, the third took him 3 days to solve, and so on, with each equation taking him 1 more day to solve than the previous one. Stephen solved the first equation on a Monday, and the second on a Wednesday. On what day of the week did he finish his 15th equation?

• Sunday

• Monday

• Wednesday

• Friday

• Saturday

Choose one fact about Chlorine that is not correct.

• It  was recognized as a gas by the Flemish chemist and physician Jan Baptist van Helmont around 1630.

• It is obtained mainly by the electrolysis of salts.

• It is obtained mainly by the electrolysis of salts.

• Compounds of this element are used to disinfect water in swimming pools.

Stephen Hawking died on the day of π, which is observed on March 14 since 3, 1, and 4 are the first three significant digits of π. Solve this Pi-problem. Pictured below are three identical boxes packed with pies. Which box contains the most pie? You can assume that all pies are exactly the same height.

• A has the most pie

• B has the most pie

• C has the most pie

• A, B and C have equal amounts

Which fact about Alexander Fleming’s life before he became a bacteriologist is true?

• Alexander Fleming was born in Scotland in 1891.

• Alexander did not follow his family occupation.

• He studied medicine at a hospital in Edinburgh.

• He was an average student at school and didn't have any special abilities.

What happened when Fleming used a diluted solution of penicillin?

• Bacteria of influenza did not grow.

• Penicillin worked against many types of bacteria but for those of flu.

• He had the flu and couldn't continue his experiments.

• He had an accident in his laboratory.