WorksheetsQuiz Pre-exam
Total questions: 30
Worksheet time: 8hrs 30mins
Scientific understanding is…
Static: it never changes
Always changing with new evidence
Based only on opinions
Unrelated to experiments
Which pair shows the correct chemical symbols?
Oxygen = Ox; Copper = Co
Oxygen = O; Copper = Cu
Oxygen = Og; Copper = C
Oxygen = H; Copper = Fe
In the International System (SI), the base unit of mass is the…
gram (g)
kilogram (kg)
pound (lb)
tonne (t)
The SI base unit for length is the…
meter (m)
kilometer (km)
centimeter (cm)
inch (in)
The SI base unit for time is the…
minute (min)
hour (h)
second (s)
day (d)
The SI base unit for temperature is the…
degree Celsius (°C)
Kelvin (K)
degree Fahrenheit (°F)
Pascal (Pa)
Which list correctly matches elements to their letters?
Hydrogen (H), Oxygen (O), Nitrogen (N), Carbon (C), Copper (Cu), Iron (Fe)
Hydrogen (Hy), Oxygen (Ox), Nitrogen (Ni), Carbon (Ca), Copper (Cp), Iron (Ir)
Hydrogen (H), Oxygen (O), Nitrogen (N), Carbon (C), Copper (Co), Iron (I)
Hydrogen (Hg), Oxygen (O2), Nitrogen (Nt), Carbon (Cb), Copper (Cu), Iron (Fe)
What is usually the first step of the Scientific Method?
Share conclusions
Design an experiment
Make observations and ask questions
Analyse results
A hypothesis is…
A law that never changes
A possible explanation that can be tested
A list of materials
A final conclusion
When designing an experiment, a control is used to…
Make the experiment faster
Have a comparison that does not receive the tested variable
Increase the number of variables
Change the hypothesis
Why do scientists often use graphs and tables?
Because pictures are prettier
To make data easier to understand and compare
To avoid doing math
To hide mistakes
What are identification keys used for?
To classify and identify organisms or objects using traits
To measure temperature
To predict earthquakes
To translate languages
Which set lists ONLY the main weather variables we measure?
Sunshine, temperature, pressure, wind, humidity, precipitation
Clouds, mountains, rivers, sunshine, heat
Temperature, animals, plants, rainfall, light
Pressure, volcanoes, humidity, seasons
Atmospheric pressure is defined as…
The speed of the wind
The force/weight of air acting on surfaces
The temperature of the air
The height of clouds
We measure air pressure with a ___ and in SI the unit is ___
thermometer; °C
anemometer; km/h
barometer; Pascal (Pa)
hygrometer; %
As altitude increases, atmospheric pressure…
Increases
Stays the same
Decreases
Becomes negative
Pressure below 1013 millibars indicates a…
High-pressure zone (A) / anticyclone
Low-pressure zone (B) / storm
Hurricane
Tornado
In the Northern Hemisphere, the air masses in storms (low pressure, B) rotate…
Clockwise
Counterclockwise
Upward only
They do not rotate
In the Northern Hemisphere, air masses in anticyclones (A) rotate…
Counterclockwise
Clockwise
Randomly
They do not rotate
Wind forms because…
Warm air sinks and creates high pressure that pulls more warm air
Pressure is equal everywhere
Cooler, higher-pressure air moves toward lower-pressure areas created by rising warm air
The Moon pushes the air
Which conditions are needed for clouds to form?
Only very cold air
Water vapour, cooling/condensation, and tiny particles (dust)
Strong winds and sunshine
Hurricanes and mountains
Typical weather in an anticyclone (A) near the surface is…
Rainy and stormy
Stable, dry and sunny
Foggy and snowy
Always windy with hurricanes
Hurricanes usually form over…
Very warm waters
Very cold waters
Deserts
High mountains
Hurricanes can reach wind speeds of…
More than 250 km/h
Less than 50 km/h
Exactly 1013 km/h
No more than 100 km/h
According to the 30/30/30 rule, fire risk increases when…
Temperature < 30°C; Humidity > 30%; Wind < 30 km/h
Temperature > 30°C; Humidity < 30%; Wind > 30 km/h
Temperature > 30°C; Humidity > 30%; Wind < 30 km/h
Temperature < 30°C; Humidity < 30%; Wind > 30 km/h
On weather maps, lines that connect points of equal pressure are called…
Contours
Isotherms
Isobars
Isohyets
As air rises and pressure drops, the air…
Compresses and warms
Expands and cools
Stops moving
Becomes denser
A place with 35°C, 20% humidity, and 40 km/h wind compared to 22°C, 60% humidity, 10 km/h wind is…
Less likely to have a fire
Equally likely to have a fire
More likely to have a fire
Impossible to tell
Which step usually comes LAST in the Scientific Method?
Formulate a hypothesis
Share your conclusions
Analyse results
Make observations
Why do we define variables (independent, dependent, controls) in experiments?
To make conclusions subjective
To ensure a fair test and clear cause–effect relationships
To make experiments longer
To avoid analysing data
