Tag Archives: combined science

B5 Transportation (Combined Science)

Leave a reply

B5.1 TRANSPORT IN PLANTS

 

Transport in plants in three and a half minutes:

Or how about a whole lesson from Mr Paul Andersen? He goes into more detail than we need (we have to know about Dicots but not Monocots), but he’s good:

The most amazing thing about trees (5m video).

TRANSPIRATION

More-detailed than we need but it’s good:

Mr Paul Andersen starts by defining transpiration as evaporation of water from a leaf. He then describes how a potometer can be used to measure the rate of transpiration in different environments:

For self-assessment questions, with exercises and discussions, just click on the correct topic at Biology GCSE & IGCSE Question Bank.

Skoool gives you a lesson, including progress questions, for each Biology topic but you’ll need sound on for it. GCSE Bitesize has revision pages (that take you through the topic), a test and an activity. 

B5.2 TRANSPORT IN HUMANS

Mr Exham’s site has a fantastic section on Blood and Circulation: videos, animations, quizlets, worksheets – go here now!

For self-assessment questions, with exercises and discussions, just click on the correct topic at Biology GCSE & IGCSE Question Bank. The s-cool revision site lets you revise the topic, summarizes the topic & tests you on it. Skoool gives you a lesson, including progress questions, for each Biology topic but you’ll need sound on for it. GCSE Bitesize has revision pages (that take you through the topic), a test and an activity. 

CIRCULATION & BLOOD VESSELS:

GCSE Bitesize – Blood Circulation covers how the heart circulates blood & the composition of blood (6m 35s).

Other videos include The Virtual Body – Circulation, Respiration & Breathing (19m), Science in Focus – Life Blood (19m 15s) & BBC Short Circuit Blood & Circulation (19m).

Various animations about heart & circulation problems can be found here.

BLOOD:

Blood GCSE from dhmcmillan

Blood video (a 3m 44s lesson) & Blood music video by Peter Weatherall – 3m 3s and very catchy! And here is a day in the life of a Red Blood Cell (a one minute cartoon) & here a white blood cell chases a bacterium (20s).

THE HEART:

Heart Structure and Function from Faiq Bin Zahid

Science Bank 22 (Body Parts): you just need Part 2 – the Heart (from 5m 20s to 10m 15s):

Infographic from Compound Interest: Chemistry-of-Blood-Colours-v2.3

B6 Respiration (Combined Science)

Leave a reply

For self-assessment questions, with exercises and discussions, just click on the correct topic at Biology GCSE & IGCSE Question Bank. A powerpoint can be downloaded from the same site here. The s-cool revision site lets you revise the topic, summarizes the topic & tests you on it. Skoool gives you a lesson, including progress questions, for each Biology topic but you’ll need sound on for it. GCSE Bitesize has revision pages (that take you through the topic), a test and an activity.

B6.1 RESPIRATION & ENERGY

What is aerobic respiration? a short (51s) introductory video from Clipbank.

Science Bank 8 (Biological Reactions): you only need Part 2 – Respiration (from 5m 20s to 9m 55s) and you only need to know about aerobic respiration:

B6.2 GAS EXCHANGE

Science Bank 22 (Body Parts): you just need Part 1 – The Lungs (to 5m 20s):

How do the Lungs work? – a three and a half minute TED-Ed lesson:

Gas Exchange – a 3m video on oxygen transport from lungs to cells. The Respiratory System – a 3m 30s video on how the respiratory system works. The Virtual Body – Circulation, Respiration & Breathing (a 19m video).

Respiratory system song:

Cigarette-Smoke-Compounds

 

Infographic from the fabulous Compound Interest – just click on it to enlarge.

B7 Coordination & Response (Combined Science)

Leave a reply

For self-assessment questions, with exercises and discussions, just click on the correct topic at Biology GCSE & IGCSE Question Bank. The s-cool revision site lets you revise the topic, summarizes the topic & tests you on it. Skoool gives you a lesson, including progress questions, for each Biology topic but you’ll need sound on for it. GCSE Bitesize has revision pages (that take you through the topic), a test and an activity.

B7.1 HORMONES

The only hormone we need to know about is adrenaline. Here GCSE Bitesize revises Hormones (7m 12s) in more detail than we need.

B7.2 TROPIC RESPONSES

We only need to know the first 28 slides:

Tropisms from Marthese Azzopardi

Science Bank 15: Part 3 covers Plant Tropisms (from 9m 25s to 14m 30s):

A 3 minute introduction to tropisms (from Twig World).

Plant Control – Paul Andersen explains how plants use hormones to respond to their environment. We only need to know about auxins (to 3m 40s).

B8 Reproduction (Combined Science)

Leave a reply

B8.2 SEXUAL REPRODUCTION IN PLANTS

Plant reproduction from chduncan

Flower dissection by Mr Exham (Mr Exham.com):

Flower to fruit in eight weeks:

A 3m 27s vid on Germination from Bitesize Top 20 Demos and here is a time-lapse video showing germination of a climbing bean:

And here is mung bean germination:

The beautiful tricks of flowers  – a 14m TED-Ed talk from Jonathan Drori, and here’s The Beauty of Pollination:

B8.3 SEXUAL REPRODUCTION IN HUMANS

Igcse biology edexcel 3.8 3.12 from Marcos Rodriguez

Right here, right now by Fatboy Slim and an animation that takes us from conception to just before birth.

Medical animations that include fertilisation, ovulation, labor and birth and here is ovulation captured on film for the first time.

THE MENSTRUAL CYCLE

Why do women have periods? – a 4m 45s TED-Ed video.

FERTILISATION

The Great Sperm Race Game.

The physics of sperm versus the physics of sperm whales – a fascinating animated vid from TED-Ed (4m 18s).

PREGNANCY & BIRTH

Here are some pregnancy illustrations and birth animations – aimed at expectant mothers.

BREAST-FEEDING

Learn the differences between breast milk and baby formulas with tips from a registered nurse in this free video on family health.

HIV / AIDS

Fantastic animated tutorials from McGraw Hill Education on HIV replication & how the HIV infection cycle works. This is much more detailed than you need.

Hans Rosling unveils new data visuals that untangle the risk factors of HIV. He argues that preventing transmissions – not drug treatments – is the key to ending the epidemic.

B9 Energy Flow in Ecosystems (Combined Science)

Leave a reply

For self-assessment questions, with exercises and discussions, just click on the correct topic at Biology GCSE & IGCSE Question Bank. A powerpoint can be downloaded from the same site here. The s-cool revision site lets you revise the topic, summarizes the topic & tests you on it. Skoool gives you a lesson, including progress questions, for each Biology topic but you’ll need sound on for it. And both these sites –  GCSE Bitesize & GCSE Bitesize – have revision pages (that take you through the topic), a test and an activity. 

Here are some key terms and definitions: Key Terms B10

GCSE Bitesize covers Living Things in their Environment in 16m 44s.

ECOLOGY (food chains, food webs & trophic levels):

What is an ecosystem? video from The Virtual School:

What is a trophic level? video from The Virtual School:

Mr W sings Food Chains.

ENERGY TRANSFER:

Science Bank 10 (Energy Cycles in Nature): Part 1 – Energy transfer in nature – food chains & energy flow through them (to 5m 25s); Part 2 – the Carbon cycle (to 10m 55s):

NUTRIENT CYCLES:

A short (2m 26s) vid from Clipbank – Recycling Nutrients & Dr Yan’s Rotting Food time lapse from Bang Goes the Theory (1m14s). What happens to your body after you die? – Instant Egghead video (2m 10s).

The Carbon Cycle: Carbon Cycle Video – Lesson Starter (3m), Carbon Cycle cartoon by Sofia (Climate Champion, 2006) & GCSE Bitesize – The Carbon Cycle (2m 41s). Finally, Mr W sings ‘7 ways to reduce carbon’:

How wolves change rivers (a nice intro to Ecology):