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WorksheetsQuiz For Unit 3,4 and 5.1,5.2
Total questions: 24
Worksheet time: 12mins
What is density?
Mass ÷ volume
Volume ÷ mass
Mass × volume
Weight ÷ volume
Which object has the highest density?
Large mass, large volume
Small mass, large volume
Large mass, small volume
Small mass, small volume
Which statement is correct?
Heat and temperature are the same
Heat is energy, temperature is how hot something is
Temperature flows from hot to cold
Heat is measured in °C
Which unit is used to measure temperature?
Joule
Gram
Degree Celsius
Watt
What does the law of conservation of energy state?
Energy can be destroyed
Energy can be created
Energy is always lost
Energy cannot be created or destroyed
When energy changes form, the total energy is:
Increased
Decreased
The same
Zero
Thermal energy always moves from:
Cold to hot
Hot to cold
Solid to liquid
Gas to solid
What happens when two objects reach the same temperature?
Energy transfer stops
Energy increases
One becomes hotter
They freeze
Which method transfers heat through particles vibrating?
Conduction
Convection
Radiation
Evaporation
Which method of heat transfer happens in liquids and gases?
Conduction
Radiation
Convection
Insulation
Why does evaporation cause cooling?
Cold particles escape
Heat is destroyed
High-energy particles leave the liquid
Liquid becomes solid
Why does sweating cool the body?
Sweat freezes
Sweat absorbs oxygen
Sweat evaporates and removes heat
Sweat blocks heat
Why do plants need water?
To keep leaves green
For photosynthesis and support
To make seeds
To absorb oxygen
Which structure absorbs water from the soil?
Leaf
Stem
Root hair cell
Xylem
What is transpiration?
Making food
Losing water vapour from leaves
Absorbing minerals
Moving food around the plant
Which factor increases transpiration rate?
Low temperature
High humidity
Wind
Darkness
What is excretion?
Removal of undigested food
Removal of waste products from reactions
Breathing
Digestion
Which organ removes urea from the blood?
Liver
Lungs
Kidneys
Heart
Which substance can harm a developing fetus?
Water
Oxygen
Alcohol
Vitamins
Why is a balanced diet important during pregnancy?
To reduce breathing
To increase blood pressure
To support healthy fetal development
To stop transpiration
What is a displacement reaction?
Acid + alkali
More reactive metal replaces a less reactive one
Metal + oxygen
Splitting a compound
Which metal can displace copper from copper sulfate?
Silver
Copper
Iron
Gold
Why is the reactivity series useful?
To measure density
To predict reactions
To find temperature
To identify plants
What is a splitting reaction?
Mixing metals
Breaking a compound into simpler substances
Cooling by evaporation
Neutralisation
