This video covers what prime and composite numbers are, and how we can tell whether a particular number is prime or composite. Key points: - Prime numbers are only divisible by themselves and 1. - Composite numbers are any number that...

This video is part 2 of our series on fractions. It covers the what mixed and improper fractions are, and how to convert between the two of them.



This video is suitable for maths courses around

the...

In this video we look at how to use fractions in real life, including:

- How to find a fraction of a whole nu
mber
- How to write one number as a fraction o

f another

KS3 -
All on your course
GCSE Foundat
ion -...

This video covers: - The idea that plants respond to their surroundings just like animals do - But that plants use local hormones rather than a nervous system - How auxins enable plants to respond to light (phototropism) and gravity...

This video looks at how to use BODMAS (also called BIDMAS), which tells you the order in which you should do all the operations, like brackets, order, division, multiplication, addition and subtraction. We also run through 2...

This video covers how to multiply and divide numbers that are in standard form like 3x10^2 x 4x10^3. This is part 3 in our 4 part series on standard form.



KS3 - Not on y
our course
GCSE Foundation - All
on your...

In this video we cover how to multiply and divide fractions, as well as running through a few examples.<b<br/>r/>

KS3<br/> - All on your course
GCSE<br/> Foundation - All on your course
GCSE Higher - All on your course

This video covers how to find the "Highest Common Factor" of a group of numbers. We cover 2 methods. The first is the easier method, which involves listing out the factors of each number and picking the highest factor shared by...

This video covers how to estimate the square root of any square number by finding the square roots of the numbers on either side.



KS3 - All on y
our course
GCSE Foundation - All
on your course
GCSE Higher - All on...

This video covers how to covert normal numbers like 350 into standard from numbers like 3.5x10^2. This is part 2 in our 4 part series on standard form.



KS3 - Not on y
our course
GCSE Foundation - All
on your...

This video covers how to convert basic fractions to decimals, by dividing the numerator by the denominator.



If you need to learn to know how to convert fractions to recurring decimals, check out this video instead:...

In this video we cover how you convert decimals to percentages, which we can do by multiplying them by 100. <b<br/>r/>

KS3<br/> - All on your course
GCSE<br/> Foundation - All on your course
GCSE Higher - All on your course

This video covers how to add and subtract numbers when they're in standard from like 4x10^2 + 5x10^3. This is part 4 in our 4 part series on standard form.



KS3 - Not on y
our course
GCSE Foundation - All
on your...

This video covers:

- The two steps of protein synthesis: transcription and transl
ation
- Transcription is the production of mRNA, which is a copy
of a gene
- Translation is the production of a sequence of amino...

This video covers:

- How x-ray machines
work
- How gamma rays are used to sterilise food and medical
equipment
- The pro's and con's of u

sing radiation


Exam board specific info:
AQA - Everything
is...

This video covers:

- What pressur
e is
- How to calculate it using the equatio

n: p = F/A/>
General info:
- Suitable for al
l GCSE and IGCSE courses
- See below for whether it is higher or founda
tion...

This video covers:

- Why objects appear the colour th
ey do
- What happens when light is absorbed, reflected and tr
ansmitted
- What makes objects appear opaque, transparent an
d translucent
- How

colour...

This video covers:

- The different colours of visible l
ight
- How light is used is optic
al fibres
- The concept of fluorescence with ultrav
iolet radiation
- How ultraviolet radiation can

be used in...

This video covers:

- The idea that ultrasound is just sound with a frequency over 20,0
00 Hz
- How we can generate
ultrasound
- How we use ultrasound to view foetuses in pr
enatal scanning
- How we use...

This video covers:

- How stars form, live an
d die
- How they transition between a nebula, protostar, main seq
uence star
- And then either red giant, white dwarf
and black dwarf
- Or red super giant, supernova,...

This video covers:

- The difference between scalar and vector quanti
ties
- Why speed is scalar, but velocity is
a vector
- The difference between distance an
d displacement
- How to calculat
e speed and...

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 ma
de of
- The concept of specific la
tent heat
- The specific latent...

This video covers:

- The idea that the movement of a wire within a magnetic field induces a potential difference, and that this may lead to a current if the circuit is com
plete
- How we can increase the size of th
e...

This video covers:

- The difference between scalar and vector quanti
ties
- Exampl
es of each
- An case study using distance v

s displacemen
t

General info:
- Suitable f
or all GCSE and IGCSE courses...