Compare and contrast plant and animal cells with these superb interactive diagrams.
Sensational photographic slides of plant and animal cells to boost your classroom resources. If you would like to see your photographic slides added to this library don't hesitate to email them to echalk. Select "View" and then "Full Screen" on your browser to see this resource at its best.
Learn about the relationship between chromosomes, genes and DNA with this animation which depicts an incredible journey into the nucleus of a cell.
A fast paced quiz that requires lightning reactions as well as knowledge.
An animation showing the stages of cell division during mitosis.
A suite of animations illustrating the process of mitosis for higher level students; interphase, prophase, metaphase, anaphase, telophase and cytokinesis.
Complete this diagram depicting the life cycle of a cell by dragging the labels to the correct position. You'll need to be familiar with the four stages of mitosis.
A series of animations illustrating the process of meiosis.
Do you know the difference between meiosis and mitosis? Use this resource and you soon will!
A set of quizzes to test your knowledge of the key words in this subject area.
This diffusion simulation shows how some large particles dissolve and eventually spread out due to collisions between themselves and the surrounding smaller particles.
A simulation that demonstrates the mechanism of osmosis. Start the simulation and watch the particles randomly bounce around the screen. Notice that the sugar molecules cannot pass through the membrane but the water molecules can. Soon a state of equilibrium will be reached.
A simulation that demonstrates the mechanism of active transport. If a sugar molecule hits a carrier protein it will be transported to the other side of the membrane (against the concentration gradient).
This simulation shows the random movement of large smoke particles as they are being bombarded by the fast moving molecules that make up the surrounding air.
A Venn diagram activity to introduce your pupils to the differences between aerobic and anaerobic respiration.
A drag and drop activity in which pupils are required to construct the word equations of aerobic and anaerobic respiration.
Learn the names of the different bones in the human skeleton with this drag 'n' drop labelling exercise. (worksheet)
Learn where the major muscle groups of the body are located with this labelling exercise.
An animation that shows how the biceps and triceps work together in order to flex and straighten the arm.
You have full control over the image ... colour it in and add or remove labels and arrows at the touch of a button. Simply click on individual labels and arrows to toggle them on or off (in this way the diagram can be simplified to suit any age group).
As we get older our ability to hear high pitched sounds decreases. The younger you are the higher the frequency you can hear. Take this test to find out if your hearing is older or younger than you are!
An animation illustrating what happens when we breathe in and out.
Label the parts of the respiratory system. This resource also contains a diagram of alveoli. (worksheet)
A sequence of animations showing the means by which we get oxygen from the air into our blood and carbon dioxide out of our blood into the air.
A visual database. Click on a body part to find out what it does. (worksheet)
A high energy quiz that requires coordination as well as knowledge. Ideal for the interactive whiteboard. This resource also includes a printable worksheet and a separate activity to help the teacher with marking. (worksheet)
An animation to show how the muscles of the digestive tract contract and relax in sequence to produce a travelling constriction that pushes the content onwards.
Learn to identify the position, shape and function of the different tooth groups in the human mouth.
Learn to identify all the different kinds of teeth in the human mouth with this labelling activity.
Learn about the structure of a tooth with this labelling exercise.
This beautiful animation shows your pupils how the chambers and valves of the heart function in order to pump blood around the body. This resource includes an animated schematic of the circulatory system. The interactive labels provide you with a number of class activities for teaching your pupils the structure of the heart.
A database of the endocrine system that shows you where the different glands are and what they are responsible for.
Use these colourful quiz games to get familiar with the main endocrine glands and the hormones they secrete.
Can you correctly label the endocrine system? Try this drag and drop activity to find out.
A graphical database to help you learn what the different areas of the brain are responsible for.
Learn to identify the different areas of the brain with this labelling activity.
Two labelling exercises to make sure you can find your way around this important body system.
A general quiz on homeostasis. This resource also includes a printable worksheet.
A resource to help your pupils learn the function of the different structures in skin. (worksheet)
Bert and Bart are twins and they both love eating chips. Unfortunately one of the brothers is diabetic. Run the simulation and see what happens to their blood sugar and insulin levels after they eat a huge bag of chips.
In this activity you must give Bert his insulin injection at just the right time. Too soon and his blood sugar levels will plummet (hypoglycemia), too late and his blood sugar levels will be dangerously high (hyperglycemia).
An addictive reaction test with loads of uses for practical work. Find out your reaction speed and whether it changes when you're tired, hungry or buzzing on coffee.
Are your reactions fast enough to stop in time when granny jumps into the road? Find out how thinking and stopping distances are affected when you drive at different speeds. Change the car mass, brakes and tyres and discover what difference that makes. You can even decide to be sleepy or drunk!
Learn how to interpret pie charts with this interactive resource. The finished pie chart can be shown in 2D or 3D and you have a handy protractor tool to help you figure out what colour to paint each sector.
Learn the parts of the female reproductive system with this colourful drag and drop activity.
Learn the parts of the male reproductive system with this colourful drag and drop activity.
A delightful animation of the stages of pregnancy from ovulation to birth.
An interactive timeline depicting the four stages of the menstrual cycle and the changes in hormone levels.
A timed word-gap exercise on the menstrual cycle. (worksheet)
Investigate the development of secondary sexual characteristics in males and females with this Venn diagram activity.
A beautiful sequence of animations that illustrate the life cycle of a flowering plant.
Learn the parts of a flower with this colourful drag and drop activity. (worksheet)
Learn to identify all the reproductive parts of a flower with this labelling exercise.
Do you know what the different reproductive parts inside a flower are responsible for? Use this activity and find out!
A resource to help your pupils learn the function of the different structures in a leaf. (worksheet)
A beautiful animation to illustrate the gaseous exchange taking place in a plant during the day and the night.
A drag and drop activity to make sure you know the photosynthesis equation using both words and symbols.
The aim of this visually attractive resource is to balance the photosynthesis equation. The program displays a running tally of the number of elements on each side of the equation and lets you know when it is balanced.
Construct and compare the word equations for aerobic respiration and photosynthesis to discover how these processes complement each other.
A beautiful, interactive 3D molecule of chlorophyll. Show your pupils what the molecule essential to photosynthesis looks like. To see the application you should use the latest version of your browser.
Test your knowledge of photosynthesis with an eChalk trademark bounce quiz. (worksheet)
Don't just talk about carbohydrates - show your pupils exactly what they look like in glorious, interactive 3D. The library includes a selection of common monosaccharides, disaccharides and polysaccharides.
An awe-inspiring 3D model of the beautiful double helix...this has to be seen to be believed. To see the application you should use the latest version of your browser.
Play the part of a predatory bird hunting for moths in the forest. A wonderful activity that shows how different camouflage leads to selective predation and so to a change in the population. Depending on whether you choose to hunt in a pre-industrial or post-industrial forest you will find either the dark moth or the light moth easier to catch. Go on, have a go!
See how the 'Lumptys' evolve into two distinct species over many years after a freak galactic event causes them to become geographically separated. This beautiful cartoon provides a great way to introduce topics such as allopatric speciation and adaptive radiation.
A compendium of on-line games to ensure you know the definitions and spelling of key words from this subject area.
Entrench the ideas of dominant and recessive alleles. Teachers may use this visual model to show how different gene combinations affect eye colour.
Are our traits the results of our genes, our environment or a mixture of the two?
A gentle introduction to heredity. By looking at pictures of famous people the pupils must determine which child belongs to which parent.
Complete a Punnett square of a monohybrid cross to show the genotypes and phenotypes of the F1 and F2 generation of pea plants by looking at the alleles for plant height.
Explore codominance in Snapdragons by completing Punnett squares to show the genotypes and phenotypes for the F1 and F2 generations by looking at the alleles for flower colour.
Complete a Punnett square of a dihybrid cross to show the genotypes and phenotypes that result from an F1 cross by looking at the alleles for pea colour and shape.
A step-by-step animated guide to electrophoresis and the technique of Southern Blotting.
Learn all about genetic profiling and use your knowledge to deduce the culprit of a crime.
Introduce your class to ID keys with this lovely whiteboard activity. Click here for a printable worksheet that allows pupils to devise their own keys.
A more advanced exercise to teach your pupils how to use branching keys to identify fish. Click here for a printable worksheet that allows pupils to devise their own keys.
Introduce vertebrates and invertebrates with this gruesome (but fun) whole-class activity.
Can you tell the difference between a warm and a cold-blooded animals? In this game you must guide the animals into the correct bucket based on whether they are warm-blooded or cold-blooded.
Grouping organisms
An introduction to the contribution of Carl Linnaeus to the science of taxonomy.
Food chains
Food webs
Adaption: Design an organism
Can you build a creature that is well adapted to its environment?
This simulation allows you to design your own predator and their prey and then run a simulation to see how the biomass of each population varies over time. Will your creatures survive or will it be a case of boom and bust and the eventual extinction of both species? Finding a sustainable balance is not easy.
A beautiful resource that illustrates how carbon cycles from one carbon store to another. You have full control over the animation and can isolate different processes (e.g. respiration or photosynthesis).
This resource illustrates how nitrogen cycles from one nitrogen store to another. You have full control over the animation and can isolate different processes.
A beautiful animation showing the stages of eutrophication.
Learn the different parts of a light microscope with this interactive labelling exercise.
Preparing slides for an optical microscope
A sequence of animations showing how to prepare a slide in order to view human cheek cells, onion cells and pollen cells under a light microscope.
Learn the different parts of a Bunsen burner with this interactive labelling exercise. (worksheet)
Find out how much you know about using a Bunsen burner safely with this interactive quiz game.
Can't tell the difference between a Mega and a milli? Freak out at the sight of Giga, micro or nano? Fear not for this game is here to sort you out. Play it to learn the values and symbols for all the unit prefixes you're likely to encounter in school.
Make sure you're up to speed with the new hazard symbols with this visual database and memory game
Find out about the hazard symbols with this visual database (great for project work). This resource also contains a memory game to test how much the class knows about the hazard symbols.
Would you know what to do in an emergency? Use this informative resource to make sure you do!
A new improved timer that now includes a countdown timer as well as a standard timer. Some of the alarm sounds are not for those of sensitive disposition. The time is given in Hours, minutes, seconds and hundredths of a second. Handy for timed tests, exams and activities.
A digital assistant that keeps an eye on your class on those rare occasions when you have to pop out.
Feeling stressed, anxious or overwhelmed? Take yourself to a place of peace and calm in only five minutes with this tried-and-tested technique.
Track and display scores for classroom quizzes and games with our handy tool. Choose from fun themes like 'Alien Abduction', 'In Your Face', and 'Snail Race'. Perfect for adding a competitive edge to your lessons.