Nuffield Foundation
Making Serial Dilutions
There's no need to water down the resource. A tutorial takes learners through the process of creating dilutions for any solution. Specifically, it focuses on serial dilutions with successive factors of 10.
Nuffield Foundation
Effect of Size on Uptake by Diffusion
Cell size is limited by the surface area to volume ratio, but why is this true? Scholars measure the surface area and volume of cubes before placing them into liquid. After a set amount of time, they measure the uptake by diffusion for...
Nuffield Foundation
Investigating the Effects of Biochar on Soil Fertility
Breathe some new life into charcoal. Scholars use biochar to improve soil fertility. They test the effectiveness of this addition by conducting an experiment with soil having 0%, 2%, and 4% biochar.
Curated OER
How Do Plants and Animals Change the Environment Around Them?
If you have elodea and snails in your classroom aquarium, or if you have access to a pond with these organisms, your young biologists can set up a controlled experiment to determine how certain ecosystems respond in light and dark...
Curated OER
Cloning a Living Organism
It's the attack of the clones! Not to worry; these are just plant clones. Teen horticulturalists will enjoy growing their own clone into a plant in an activity designed to be revisited after a few weeks. It is one experiment that kids...
Curated OER
Testing Leaves for Starch: the Technique
Like good scientists, kids often want to see first-hand why things are as they are; they can do just that in the starch-testing photosynthesis activity found here. Depending on the age of your pupils, you may wish to do the investigation...
Nuffield Foundation
Modelling the Human Ventilation System
Why is breathing so difficult for asthma sufferers? To find out, learners build their own lung models in the investigation (from a British website, hence the term ventilation system instead of respiratory system). Using different-sized...
Curated OER
Using the Balance
Students determine the mass of various objects. In this integrated math and science lesson, students use an arm balance to compare a known object to a combination of washers with a fixed weight. Students record data, construct a bar...
Curated OER
Sports Helmets and Impact Testing of Polymers
Students examine the importance of good quality safety gear. In this investigative instructional activity, students will tests various polymers, collect data, and analyze the data to determine which polymer is best for safety helmets....
Curated OER
Density-Qualitative and Quantitative
Students investigate density using film canisters filled with different density materials and larger objects of varying density. In this density lesson plan, students discuss the concept of density and rank film containers from dense to...
Curated OER
Control Mechanisms
Students explain how a feedback control system works. They model a feedback control mechanism for controlling water level by observing the flow rate of water in a cylinder. In addition, they graph their data. Script for lesson is included.
Curated OER
Principles of Heredity
Students model traits on genes using colored paper and tongue depressors to represent chromosomes. In this heredity lesson plan, students use their "chromosome sticks" to understand chromosome pairs, genes, dominant traits, recessive...
Curated OER
The Effects of Over Exposure to Ultraviolet Radiation on the Growth of Plants and Bacteria
Students investigate the effects of UV light and ozone on plant and bacteria growth. In this ultraviolet light and ozone lesson plan, students grow bean and mustard greens to study the effects of UV light and ozone on the plant growth....
Curated OER
Chromosome Karyotyping
Students explore chromosome karyotyping. In this chromosome karyotyping lesson plan, students use a chromosome kit to explore chromosome syndromes and disorders. They also produce a large model of a cell with chromosome to simulate cell...
Curated OER
How Do Toxins Affect the Human Body?
Learners study toxins. In this biology lesson plan, students identify toxins contained within household products and determine specific affects that toxins may have on the human body.
Curated OER
Over-The-Counter Antacids
Students investigate the best antacids for sour stomachs. In this antacids lesson plan, students use different antacids, balloons and flasks containing 0.1 M HCl. They place the balloon with the antacids in them on top of the flaks and...
Curated OER
Preparation of Artificial Flavorings and Fragrances
Students prepare artificial flavorings and fragrances. In this esters lesson, students combine an acid and an alcohol of choice to make an ester. Water is released and they produce an artificial flavoring or fragrance. They answer 4...
Curated OER
Liquid Conductors
Young scholars identify liquids as conductors. In this circuits lesson, students build a circuit, then use various liquids to complete the circuit, and determine which liquids successfully conduct electricity.
Curated OER
Air Pollution
Students collect and examine particulate matter found in the air. In this pollution activity, students use microscope slides and petroleum jelly to collect particulate matter from several different locations, then use a microscope to...
Curated OER
The Tests of Fluids for Excess Glucose, Amino Acids and Salicyclic Acid
Students test fluids for amino acids, glucose and salicyclic acid. In this chemistry indicators lesson plan, students use chromatography paper, Benedicts solution and iron chloride to test solutions for amino acids, glucose, and...
Curated OER
Volumetric Analysis 1- To Make a Standard Solution of Sodium Carbonate
In this volumetric analysis worksheet, students prepare a standard solution of sodium carbonate by following the given directions. They later use the prepared solution in a laboratory practical.
Curated OER
A Simple Thermoetric Titration
In this thermometric titration worksheet, students investigate the changes in temperature when an alkali is neutralized by an acid. Students graph their results from the titration and draw 2 best fit lines on their graph. Where the lines...
Curated OER
I Wood if I Could
Tenth graders investigate the process of how specific products are made from trees. For this chemistry lesson, groups of students must choose among ice cream, bubble gum, paper, toothpaste and lipstick. They research, design and produce...
Curated OER
Pursuit of The Properties of Metals and Nonmetals
Pupils examine how every element is classified based on the physical and chemical properties. In this properties of metals activity students divide into groups, complete a lab and finish a data sheet.