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General Knowledge
100

Double points: What is the function of the cell membrane?

To let substances in and out of the cell. 

100
Which planet is closest to the Sun?

Mercury

100
What is a resultant force? 

The overall force acting on an object. 

100

What is the pH of a neutral substance?

pH 7

100

What is the longest river in the world?

The river Nile

200

Which organelle in a plant carries out photosynthesis? 

Chlorophyll/chloroplasts

200

What is the first stage in the life cycle of a star? 

Nebulae - Clouds of dust and gas come together under pressure by gravitational forces. 

200

Name the energy store found in a spring. 

Elastic potential energy. 
200

Double points: Describe the reactivity of group 1 elements? Give at least 1 property. 

Reactivity increases as you descend the group. 

Soft to cut 

Very reactive with oxygen - stored in oil 


200

Which scientist developed the theory of evolution by natural selection?

Charles Darwin

300

Define the term 'tissue'. 

A group of cells working together to perform the same function. 

300
Double points: What is the difference between a gas giant and an ice giant? Give an example for each

Gas giant - made of entirely gas held together by gravitational forces with no solid surfaces. Jupiter 

Ice giant - made of entirely ice, can still have no solid surface. Neptune / Uranus 

300

Explain the law of conservation of energy. 

Energy cant be destroyed or created, only transferred. 

300

Name all the colours that are shown by a universal indicator solution. 

Red, Orange, Yellow, Green, Blue, Purple

300
What type of word is "quickly"?

Adverb

400

Describe diffusion. 

The movement of particles from a high concentration to a low concentration. 

400

What is a white dwarf?

When the sun loses all of its outer layers its left with a very hot core - white dwarf. 
400

Double points: Describe how air resistance causes a parachutist to slow down. 

When the parachute is open, there are more air particles hitting against the parachute. This increases the upward force acting on the person. Forces start to balanced and therefore they start to slow down. 

400
Name and explain an example where the property of metals is important in everyday life. 

(Do not involve electrical conductor in your answer)

Metal wires - ductile - can be stretched into thin wires for electricity. 

Cooking equipment - Good heat conductor - metals can conduct heat which is good for cooking or keeping food warm.

Malleable - Metals can be bent into shape to make different objects.  


400

In which year did world war 2 begin?

A - 1939 

B - 1940

C - 1941

A - 1939 

500

Describe the process of natural selection and explain how it leads to evolution. 

Variation amongst a population occurs. Variation outcompetes others. 

Variation now reproduces more than others - passing on the variation. 

Population of the variation increases over generations = evolution. 

500

Describe the stages a massive star goes through before coming a neutron star or black hole. 

Massive star --> Red Supergiant --> Supernova --> Neutron star/black hole.

500

On a distance-time graph the speed of an object is found by calculating the (a)______. 

A horizontal line represents (b)_ _________ _____. 

A straight but slanted line represents (c)_ ______ ____. 

(a) gradient. 

(b) a stationary object. 

(c) a constant speed. 

500
Give a real life example of why the use of indicators is important.

(HINT: Botany - study of plant life)

 

Different plants grow in different soils. Some acidic, some alkaline. Indicators can identify the pH of a soil and therefore it can be adjusted to the suitable acidity or alkalinity for the plant/vegetable/fruit. 

500

Double points: Which country has the most time zones, including overseas territories? 

France