Sunday, 5 September 2021

Week 7 Term 3 2021

 Trebuchet

Velocity - Distance - Time
  • Speed (Velocity) is a change in distance per unit time. SI unit: meters per second (m/s or (ms-1)
  • Distance is a length. SI unit: meters (m)
  • Time is needed for things to change. SI unit: second (s)


Using the S,D,T Triangle


Distance Time Graphs


Acceleration - Velocity - Time
  • Acceleration is a change of speed (velocity) per unit time. SI unit: meters per second per second or meters per second squared (ms-2)
  • Speed (Velocity) is a change in distance per unit time. SI unit: meters per second (m/s or ms-1)
  • Time is needed for things to change. SI unit: second (s)



Optimisation of Trebuchet:
  1. The length of the payload arm should be 3.75 times longer than the counterweight arm.
  2. The length of the sling should be the same length as thepayload arm.
  3. The initial angle between the counterweight arm and the support should be 45 degrees at launch.
  4. The counterweight needs to be 133 times as heavy as your intended projectile.


How to design the perfect trebuchet

Optimising a Trebuchet

Wheels on a Trebuchet

Giant Trebuchet

Most powerful trebuchet in the world

Student's Trebuchets




Fastest People in Slow Mo

How fast does glass crack?

Monday, 14 June 2021

Term 2 Week 7 Science Fair 2021

Made with Padlet

 Science Fair 10D 2021


Science Fair



Hands-on Science Resources for Home and School


1st place science fair ideas- 10 ideas and tricks to WIN!


How to make a Hydrometer


The Syphon


Siphon Explained by Doctor C


Bernoulli's Equation Explained

Electric Train

Does Colour Effect Taste

Wednesday, 2 June 2021

Week 5 Term 2 2021

  Acids & Bases


Acids & Bases Have Two Different Faces

Acids and Bases Explained in Under 10 minutes




Acids & Bases GCSE



Acid Base Reactions


The strengths and weaknesses of acids and bases




Strong & Weak Acids



Strong & Weak Alkalis



Naming Acids Introduction

Introduction to Balancing Chemical Equations


Balancing Chemical Equations Practice Problems

Balancing Acid Base Reactions

Tuesday, 1 June 2021

Week 4 Term 2 2021

 Breathing Nobel Gasses





Table of Ions

Note:

  • Fe2+ is called Iron(II) this will combine with O2- oxide as FeO Iron(II) Oxide (black iron-oxide)
  • Fe3+ is called Iron(III) this will combine with O2- oxide as Fe2O3 Iron(III) Oxide (red rust)
  • S2- is called the Sulphide Ion and is different to SO42- the Sulphate Iron


Valence Electrons & the Periodic Table



    What is an Ion?

    Ionic Bonding Introduction

    Ionic Bonding Part 2

    Ionic Bonding Part 3


    Writing Ionic Formulas: Introduction

    What's a polyatomic ion?

    Writing Formulas with Polyatomic Ions

    Monday, 8 March 2021

    Term 1 Week 6 2021

     Human Body Systems

    Human Digestive System

    Rat Dissection in Lab A comming soon


    Rat Dissection by Charlotte Jess and Destiny






    How your digestive system works


    How the Food You Eat Affects Your Gut (Gut Bacteria)



    Inside the Stomach


    Pill Camera Swallowed


    Tapeworm Infestation



    What does the liver do?


    What does the pancreas do?


    How do your Kidneys do?

    How the heart actually pumps blood


    The Heart, Part 1


    Heartbeat sound


    How the Heart Works

    Anatomy of the Heart



    Transporting Hearts for Transplants



    How do the Lungs work?

    How do Cigarettes affect the body?



    How Oxygen gets around your Body



    How does theThyroid manage your metabolism?


    How do vitamins work?


    How sugar affects the brain


    What is fat?



    How do carbohydrates impact your health?


    Food Tests


    Food Tests:

    Test
    Tests for
    Positive Result
    Method
    Iodine
    Starch
    Turns Blue-Black
    Add a drop of iodine to food solution
    Biuret
    (CuSO4 + NaOH)
    Protein
    Turns Purple-Lavender
    Add a few drops of copper sulphate (CuSO4) shake and wait, then and sodium hydroxide (NaOH) to food solution
    Benedict’s Solution
    Sugar
    With heat turns Brick-Red precipitate
    Add a few drops of Benedict’s to food solution and heat gently of a bunsen
    Ethanol Emulsion
    Fats
    White Emulsion
    Add 2ml of ethanol to food solution and shake/mix, then add 2ml of water to solution and shake/mix
    DCPIP
    Vitamin C
    Turns Colourless
    Add a few drops of DCPIP to food solution and shake/mix then wait (NB: will turn pinky due to the presence of acid - false positive)