Science Through Examples teaches physics, chemistry, and biology through simple explanations, worked examples, and connections that help students understand concepts instead of merely memorizing them.
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Learn to balance chemical equations by preserving formulas, counting atoms, and changing only coefficients, with worked examples that increase in difficulty.
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Learn how to identify each connection, calculate equivalent resistance, current, and voltage, and check the result with two low voltage examples.
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Understand where C1V1=C2V2 comes from, how to check units and final volume, solve three common problem types, and recognize situations where the dilution equation does not apply.
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Learn why water expands when it freezes, how hydrogen bonds create an open lattice, and why that structure makes ice less dense than liquid water.
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Concepts of motion, forces, energy, electricity, waves, heat and other phenomena explained step by step.
Chemistry4 articlesAtoms, elements, substances, reactions, calculations and transformations of matter explained with examples.
Biology1 articleCells, genetics, the human body, evolution, ecology and the processes that help us understand life.
Scientific Foundations2 articlesQuantities, units, graphs, models and basic tools for understanding and solving natural science problems.
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Monozygotic twins share nearly all of their DNA and tend to have more similar fingerprints, but not identical ones. Learn how genes, fetal ridge formation and microscopic developme...
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A common scale’s sensor responds to a support force; its electronics use calibration to display a mass value in kilograms.
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Metal and wood can be at the same temperature yet feel very different. Learn how heat flow, conductivity, and thermal effusivity shape touch — and try a simple test.
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Learn how freezing-point depression lets an ice-salt mixture fall below 0 °C, with a simple experiment, an approximate calculation, and the limits of the ideal model.
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Learn how pressure raises water's boiling point, why cooking near 121 °C speeds food preparation, and what a simple energy calculation shows.
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Learn how PISA 2025 assesses computational problem solving through experiments, data analysis, modelling, building and debugging in digital tasks.
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Understand PISA 2025 science Level 2 and practise, with three original situations, how to decide whether a conclusion is supported by data.
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The equinox occurs at 00:05 UTC on Sep. 23, but in Brazil it falls on the evening of Sep. 22, and sunrise-to-sunset daylight exceeds 12 hours because of refraction and the definiti...
Read articleLearn to balance chemical equations by preserving formulas, counting atoms, and changing only coefficients, with worked examples that increase in difficulty.
Read articleContent with the most views.
Concepts of motion, forces, energy, electricity, waves, heat and other phenomena explained step by step.
Learn how to identify each connection, calculate equivalent resistance, current, and voltage, and check the result with two low voltage examples.
Read articleA common scale’s sensor responds to a support force; its electronics use calibration to display a mass value in kilograms.
Read articleMetal and wood can be at the same temperature yet feel very different. Learn how heat flow, conductivity, and thermal effusivity shape touch — and try a simple test.
Read articleLearn how pressure raises water's boiling point, why cooking near 121 °C speeds food preparation, and what a simple energy calculation shows.
Read articleAtoms, elements, substances, reactions, calculations and transformations of matter explained with examples.
Learn to balance chemical equations by preserving formulas, counting atoms, and changing only coefficients, with worked examples that increase in difficulty.
Read articleUnderstand where C1V1=C2V2 comes from, how to check units and final volume, solve three common problem types, and recognize situations where the dilution equation does not apply.
Read articleLearn why water expands when it freezes, how hydrogen bonds create an open lattice, and why that structure makes ice less dense than liquid water.
Read articleLearn how freezing-point depression lets an ice-salt mixture fall below 0 °C, with a simple experiment, an approximate calculation, and the limits of the ideal model.
Read articleCells, genetics, the human body, evolution, ecology and the processes that help us understand life.
Monozygotic twins share nearly all of their DNA and tend to have more similar fingerprints, but not identical ones. Learn how genes, fetal ridge formation and microscopic developme...
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Quantities, units, graphs, models and basic tools for understanding and solving natural science problems.
Learn how PISA 2025 assesses computational problem solving through experiments, data analysis, modelling, building and debugging in digital tasks.
Read articleUnderstand PISA 2025 science Level 2 and practise, with three original situations, how to decide whether a conclusion is supported by data.
Read articleScience Through Examples was created to make physics, chemistry, and biology easier for students to understand. The content starts from fundamental concepts, advances step by step, and uses examples, solved problems, comparisons, diagrams, and everyday situations to show how each idea works.
The goal is not to eliminate the complexity of the natural sciences, but to present it in the right order, explaining terms, formulas, and relationships before asking students to use them. When needed, the content also connects physics, chemistry, and biology to show how different areas of science can help explain the same phenomenon.
