Curated Video
GCSE Chemistry - Acids and Bases #34
This video is covers what acids and bases are, what the pH scale is, how we measure pH with indicators and probes, and what neutralisation reactions are.
Curated Video
GCSE Chemistry - Filtration, Evaporation & Crystallisation #6
In this video we'll look at: - How filtration can be used to separate insoluble solids from a liquid - How evaporation can be used to separate a soluble solid from a solution - How crystallisation can be used to separate a soluble from a...
Curated Video
GCSE Biology - Food Tests Practicals #16
Everything you need to know about the food tests GCSE practical. We cover the: - Benedicts Test - Iodine Test - Biuret Test - Sudan III Test - Emulsion test (edexcel only)
Curated Video
GCSE Maths - What Are Simultaneous Equations #60
This video covers how to solve simultaneous equations. This is where you have two equations that both have 2 unknown variables, like the equations 2a + b = 5 and 3a + 2b = 9. The only way to solve these and find the missing variables (a...
Curated Video
GCSE Maths - How to Solve a Quadratic by Completing the Square (Part 2 - Solve When a=1) #53
This video covers how solve quadratics using the 'complete the square' technique. This video is part 2 of our completing the square videos. You can find part 1 here: • GCSE Maths - How to Factorise Quadrat... This video is suitable for...
Curated Video
GCSE Chemistry - The pH Scale & Strong vs Weak Acids (Higher Tier) #35
One of the most confusing points with acids is the difference between strength and concentration. This video covers exactly what strong vs weak means and explains what the pH scale really represents. This video is suitable for: - Higher...
Curated Video
GCSE Chemistry - Tests for Anions - Carbonate, Sulfate and Halide Ions #65
This video covers: - How to test for carbonates by reacting with an acid and then bubbling the gas through limewater - How to test for sulfate ion with dilute hydrochloric acid and barium chloride - How to test for halides like chloride,...
Curated Video
GCSE Chemistry - Neutralisation Reactions #36
This video covers how acid react with different types of bases - metal oxides, metal hydroxides, and metal carbonates. It also covers the practical technique of how to make soluble salts from an insoluble base. This video is suitable...
Curated Video
GCSE Chemistry - How to Test for Gases - Testing for Chlorine / Oxygen / Hydrogen / CO2 #64
In this video, you'll learn: - The test for detecting chlorine gas - The test for detecting oxygen gas - The test for detecting hydrogen gas - The test for detecting carbon dioxide gas
Curated Video
GCSE Chemistry - How to Calculate Concentration in grams per decimetre cubed #30
How to calculate concentration in g/dm³. To measure how much of a particular substance we have a give volume, we can work out the concentration. In this video we cover how to calculate concentration in grams per decimetre cubed, and have...
Curated Video
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
Economics Explained
The $6.5 Trillion Dollar Problem Nobody Notices
There's a massive cost that every developed economy has to deal with that nobody talks about... Infrastructure maintenance. It sounds boring but all of those developments that governments love to talk up can end up costing a fortune to...
Brian McLogan
Logarithmic Equation With Extraneous Solution
When you have multiple logarithms you have to be very careful about extraneous solutions. So in this video that is exactly what I am going to do. Solve and find the extraneous solution.
Curated Video
A Practical Approach to Timeseries Forecasting Using Python - Quiz Solution - Basics of Data Manipulation in Time Series
This is a solution video of the quiz on data manipulation. This clip is from the chapter "Basics of Data Manipulation in Time Series" of the series "A Practical Approach to Timeseries Forecasting Using Python".This section focuses on the...
Curated Video
Determine the Type of Solution | 8.EE.C.8
In this math video we will determine the type of solution of a system of a linear equations. We will be provided four answer choices - no solution, one solution, two solutions, or infinitely many solutions. We will review each type of...
Curated Video
CHECKLIST for Solving a System of Equations | 8.EE.C.8
In this math video we will create and use a checklist for solving a system of equations. Checklist Step 1: If necessary, solve one of the equations for one of the two variables. Step 2: Substitute the expression from Step 1 into the...
Curated Video
Functions: Slope, y intercept & equation from a Table | 8.F.B.4
In this math video we are learning about functions, the slope, y--intercept & equation from a table. This is a four part constructed response question where we are presented with a table of values representing a linear function. In Part...
Curated Video
Make Equations True
Make Equations True" finds values for equations in a word problem that make the equations true.
Science Buddies
How to Make a Serial Dilution
Simple step-by-step instructions to help you make dilutions and serial dilutions. Calculating dilution factors has never been easier!
Science Buddies
How to Dilute a Solution
Simple step-by-step instructions to help you make dilutions and serial dilutions. Calculating dilution factors has never been easier!
Science Buddies
How to Make a Solution | Chemistry and Biology Techniques
Learn how to easily and accurately make a solution and calculate the solution concentration.
Curated Video
Why Antidepressants Kill Your Sex Drive - And What To Do About It
Why do antidepressants kill your sex drive? Sexual side effects are a common unwanted medication side effect. Serotonin is a neurotransmitter or nerve chemical that plays a role regulating your mood. But it also does affects nerves that...
Curated Video
Rational Number Equations
"Rational Number Equations" explains how to solve equations in the form px = q where p and q are given rational numbers by using knowledge of inverse operations.
Curated Video
Inverse Operations
"Inverse Operations" explains how to solve equations in the form x + p = q, where p and q are given rational numbers, by using knowledge of inverse operations.