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GCSE Physics - How Radiation Affects Temperature #72
This video covers: - The idea that objects can absorb and emit energy in the form of radiation, and that this can affect their temperature - What determines which type of radiation is emitted - Wavelength-intensity graphs - How these...
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GCSE Physics - Factors Affecting Gas Pressure #30
This video covers: - How gas particles behave - That total pressure depends on the number of collisions, and the energy of each collision - How temperature, concentration and volume affect pressure General info: - Suitable for all GCSE...
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Why Are Some Ice Cubes Cloudy While Others Are Clear?
The clarity of ice cubes is determined by the temperature of the water used to make them. Warmer water contains more impurities, which are released when the water is cooled and frozen. Ice cubes made from distilled or boiled water are...
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Feels Like Temperature: What It Really Means and How It's Calculated
Measuring actual temperature consists of recording the air temperature from a thermometer that has been kept inside a Stevenson screen or by using any other appropriate instrument. “Feels like temperature,” on the other hand, is a...
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Does Water Expand When It Freezes?
Yes, water expands when it freezes. Note that the word “expands” here indicates an increase in volume. So, a technically sound way to put it would be—water’s volume increases when it freezes. This statement is accurate, and you can test...
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GCSE Physics - The Life Cycle Of Stars / How Stars are Formed and Destroyed #84
This video covers: - How stars form, live and die - How they transition between a nebula, protostar, main sequence star - And then either red giant, white dwarf and black dwarf - Or red super giant, supernova, and then neutron star or...
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GCSE Physics - Specific Latent Heat #29
This video covers: - The idea that the temperature of a substance is just the average of the internal energy of all the particles it's made of - The concept of specific latent heat - The specific latent heat of vaporisation - The...
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GCSE Physics - Pressure and Volume - How to use the "PV = Constant" Equation #30
This video covers: - The concept that pressure and volume are inversely related - How to use the "PV = constant" equation - Examples General info: - Suitable for all GCSE and IGCSE courses - Suitable for both higher and foundation tier -...
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GCSE Physics - Microwaves and Infrared #66
This video covers: - How microwaves are used to heat food - How microwaves are used in satellite communication - The idea that hotter objects emit more infrared radiation - How we use infrared radiation to cook things General info: -...
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GCSE Chemistry - Crude Oil and Fractional Distillation #53
In this video, you'll learn: - How crude oil is formed - How crude oil is separated using fractional distillation - The process of fractional distillation - Some of the common products of fractional distillation, and their uses
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GCSE Biology - What are Enzymes?
In this video, we cover: - What enzymes are - How enzymes work - The difference between the lock and key model and the induced fit model Exam board specific info: AQA - Suitable for everyone IGCSE Edexcel - Suitable for everyone Edexcel...
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GCSE Biology - How We Control Our Body Temperature #55
This video covers: - Why we need to regulate our body temperature - How the thermoregulatory centre in the brain works - How we warm ourselves up when we're too cold - How we cool ourselves down when we're too hot Exam board specific...
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GCSE Biology - Homeostasis #54
How does your body regulate your internal conditions? How does it detect changes and respond to them? What is an automatic control system and how does it use negative feedback? Find out all this and more in less than 5 minutes!
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GCSE Biology - Global Warming & Climate Change #91
What is global warming and climate change and how will they affect the planet? Learn about how and increase in greenhouses gases is leading to global warming, and how organisms across the world are responding to this warmer world!
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GCSE Biology - Factors Affecting the Rate of Photosynthesis #49
The rate of photosynthesis is affected by light intensity, temperature, carbon dioxide concentrations, and chlorophyll. In this video we explore exactly how, and also how farmers can use this knowledge to increase the yields of their crops.
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GCSE Biology - Enzymes - How Temperature and pH Affect Rate of Reaction
This video covers: - How temperature affects enzymes and the rate of reaction - How pH affects enzymes and the rate of reaction - Why enzymes denature - Was optimum temperature and optimum pH mean
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GCSE Biology - Biotic and Abiotic Factors #83
An important part of any ecosystem are the biotic (living) and abiotic (non-living) factors. This video explore what each of them are, and how to identify them. To learn more about ecosystems in general check out our other video on...
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GCSE Physics - Components #19
This video covers: - The symbols of all the main components you need to know - What LEDs are - The graphs and uses of LDRs and thermistors General info: - Suitable for all GCSE and IGCSE courses - Suitable for higher and foundation tiers...
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GCSE Physics - V = IR Equation & Current/Potential Difference Graphs #15
This video covers: - How to use the V=IR equation - Current/Potential Difference graphs for wires, resistors, filament lamps and diodes General info: - Suitable for all GCSE and IGCSE courses - Suitable for higher and foundation tiers -...
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GCSE Chemistry - The Haber Process Explained #76
This video answers: - Why is the Haber process so important? - What is the chemical equation for the Haber process? - What are the conditions for the Haber process, and why do we use those conditions? - How does the Haber process work?...
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GCSE Chemistry - State Symbols & Predicting States of Matter #32
This videos covers how to use state symbols to show the physical state that substances are in, and also how to predict the state from melting and boiling point data. This video is suitable for: - Higher and Foundation tiers - All exam...
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GCSE Chemistry - Le Chatelier's Principle #50 (Higher Tier)
This video covers: - Le Chatelier's Principle - i.e. the idea that when a change is made to a system at equilibrium, the position of equilibrium moves to counteract the change that was made. - What happens when temperature is changed -...
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GCSE Chemistry - Fractional Distillation and Simple Distillation #50
In this video we'll learn: - The process of simple distillation - The process of fractional distillation - How simple and fractional distillation differ
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GCSE Chemistry - Factors Affecting the Rate of Reaction #47
This video covers: - Collision theory, and how it relates to the rate of reaction - The effect of temperature - The effect of concentration and pressure - The effect of surface area - The effect of catalysts