Online Quiz: British Curriculum IGCSE 10 Science Quiz: Core Biology, Chemistry and Physics
Open Online Quiz: British Curriculum IGCSE 10 Science Quiz: Core Biology, Chemistry and Physics - 🔬 Science - Level 10 - Term 1 as an interactive British curriculum quiz with instant marking and explanations.
Level 10🔬 ScienceTerm 12025/2026Teacher: Almanahj
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Cambridge IGCSE 10 Science Practice Quiz
An IGCSE 10 science quiz covering core biology, chemistry and physics with applied calculations and practical reasoning. Each question includes instant marking and a worked explanation.
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Question 1
1 point
Which structure controls what enters and leaves a cell?
Explanation
The cell membrane is selectively permeable.
Question 2
1 point
What is active transport?
Explanation
Active transport needs energy to move substances against a gradient.
Question 3
1 point
Which enzyme digests starch?
Explanation
Amylase breaks starch into sugars.
Question 4
1 point
Which condition denatures enzymes?
Explanation
High temperature changes enzyme shape and denatures it.
Question 5
1 point
Which blood component carries oxygen?
Explanation
Red blood cells contain haemoglobin.
Question 6
1 point
What is homeostasis?
Explanation
Homeostasis keeps internal conditions stable.
Question 7
1 point
What is the atomic number?
Explanation
Atomic number equals number of protons.
Question 8
1 point
Which bonding occurs in sodium chloride?
Explanation
Sodium transfers an electron to chlorine, forming ions.
Question 9
1 point
What is oxidation?
Explanation
Oxidation can mean gain of oxygen or loss of electrons.
Question 10
1 point
Which factor increases rate of reaction?
Explanation
Higher temperature gives particles more kinetic energy.
Question 11
1 point
What is the product at the cathode in electrolysis of molten lead bromide?
Explanation
Positive lead ions gain electrons at the cathode.
Question 12
1 point
Which gas turns limewater milky?
Explanation
Carbon dioxide forms calcium carbonate in limewater.
Question 13
1 point
What is velocity?
Explanation
Velocity is a vector quantity.
Question 14
1 point
State Newton's second law.
Explanation
Resultant force equals mass times acceleration.
Question 15
1 point
Calculate force on a 3 kg object accelerating at 4 m/s2.
Explanation
\(F=ma=3\times4=12\) N.
Question 16
1 point
What is work done?
Explanation
Work done = force x distance in the force direction.
Question 17
1 point
Which radiation is most penetrating?
Explanation
Gamma radiation is highly penetrating.
Question 18
1 point
Which component stores charge?
Explanation
A capacitor stores electric charge.
Question 19
1 point
Which wave has the longest wavelength?
Explanation
Radio waves have the longest wavelengths in the electromagnetic spectrum.
Question 20
1 point
What is total internal reflection?
Explanation
TIR occurs when incidence angle exceeds the critical angle.
Question 21
1 point
Which human activity increases atmospheric carbon dioxide?
Explanation
Burning fossil fuels releases carbon dioxide.
Question 22
1 point
What is eutrophication linked to?
Explanation
Fertilisers can cause algal blooms and oxygen depletion.
Question 23
1 point
Which sampling method uses a square frame?
Explanation
Quadrats estimate abundance or distribution of organisms.
Question 24
1 point
What does validity mean in an experiment?
Explanation
Validity depends on appropriate method and controls.
Question 25
1 point
What is a mole?
Explanation
One mole contains \(6.02\times10^{23}\) particles.
Question 26
1 point
Find relative formula mass of CO2: C=12, O=16.
Explanation
12+16+16=44.
Question 27
1 point
Which indicator is used in titration?
Explanation
Indicators show the end point in acid-base titrations.
Question 28
1 point
What is a vector quantity?
Explanation
Vectors include force and velocity.
Question 29
1 point
Which process transfers thermal energy in fluids?
Explanation
Convection occurs by movement of warmer fluid.
Question 30
1 point
Why use a control group?
Explanation
Controls help show whether the independent variable caused an effect.
