Free general science check

Check your science foundations.

Sample core ideas from biology, chemistry, physics, Earth science, and scientific investigation. You will receive an indicative S1-S4 result.

9 min: Typical time
15: Questions
S1-S4: Level range

Question 1 of 15 0 answered

1 Matter

When liquid water freezes, which state of matter does it become?

A Gas B Plasma C Solid D Another liquid

2 Biology

What is the main role of photosynthesis in plants?

A Using light energy to make sugars B Absorbing sound C Producing soil D Breaking rocks into minerals

3 Physics

What is the SI unit of force?

A Watt B Newton C Volt D Litre

4 Biology

Which gas do human cells use in aerobic respiration?

A Nitrogen B Oxygen C Helium D Methane

5 Earth science

What does Earth orbit?

A The Moon B Mars C The Sun D The North Star

6 Chemistry

A solution has a pH of 3. How is it classified?

A Acidic B Neutral C Alkaline D Radioactive

7 Biology

In a typical animal cell, where is most genetic material stored?

A Cell membrane B Nucleus C Cytoplasm only D Ribosome

8 Physics

An object has a mass of 200 g and a volume of 50 cubic cm. What is its density?

A 0.25 g per cubic cm B 4 g per cubic cm C 50 g per cubic cm D 250 g per cubic cm

9 Physics

Which statement best describes conservation of energy?

A Energy can appear from nothing B Energy is always destroyed after use C Energy can change form but the total is conserved in a closed system D Only moving objects contain energy

10 Biology

An organism has genotype Aa for a trait where A is dominant. Which phenotype is expected?

A The dominant phenotype B The recessive phenotype only C No phenotype D Both alleles disappear

11 Physics

A car travels 120 km in 2 hours at constant speed. What is its speed?

A 30 km/h B 60 km/h C 120 km/h D 240 km/h

12 Chemistry

Which example is a chemical change?

A Ice melting B Paper being cut C Iron rusting D Water boiling

13 Ecology

What is the original energy source for most food webs on Earth?

A The Sun B Soil C Wind D Predators

14 Chemistry

What does an element's atomic number tell you?

A Its number of protons B Its number of compounds C Its melting point D Its total number of isotopes

15 Scientific inquiry

Why is a control group useful in an experiment?

A It guarantees the hypothesis is correct B It provides a comparison for judging the effect of the tested variable C It removes the need to repeat measurements D It changes every variable at once

Before you begin

Use your own knowledge.

Choose one answer for every question.
Do not use calculators, compilers, search, or reference tools.
There is no timer, so read naturally.
You can retake the test as your skills improve.

This is an indicative self-assessment, not an accredited certificate or formal examination. It samples selected foundations and cannot measure every part of the subject.