Curated OER
Water Ecology Lab
Students determine the characteristics of a stream ecosystem and its organisms. In this water ecology lesson students complete several labs that shows them presence of life, water appearance, and water flow.
Curated OER
Chemistry Lab: Solubility Product Constant of Sodium Chloride
In this solubility product constant of sodium chloride worksheet, students gather the equipment needed and follow the procedures to determine the solubility product constant of a solute and demonstrate precipitation of a common ion to a...
LABScI
Stoichiometry: Baking Soda and Vinegar Reactions
Examine the concept of stoichiometry using common household products. Scholars perform chemical reactions and measure the reactants and products. They compare their measurements to predictions made from the chemical equations.
Curated OER
SA/V Ratio and Rate of Diffusion
Learners calculate the SA/V ratio and volume of phenophthalien agar that are cut into different shapes. They then let ammonia diffuse into the various pieces of agar and determine the effect that SA/V had on the rate of diffusion.
Curated OER
Hydrogen Peroxide Analysis
A scenario is presented for chemistry techs to address. Using titration techniques, they must analyze hydrogen peroxide solution samples. They evaluate accuracy and precision in the process. They also gain experience consulting the MSDS...
California Academy of Science
Global Climate Change and Sea Level Rise
Ice is nice, and its condition on the planet has a significant effect. Junior geoscientists experiment with ice melting in both water and on land to discover how each affect the rising sea level. This detailed instructional activity...
Curated OER
Using the Spectrophotometer to Analyze a Mixture
General chemistry classes practice spectroscopy. They grasp the relationships between wavelength, absorbance, and solution concentration. Additionally, they gain valuable practice using laboratory equipment such as burets and pipettes....
Curated OER
Determination of the percentage of Acetic Acid in Vinegar
Young scholars determine the concentration of acetic acid when the concentration of the base with which is titrated is known. They investigate how to weigh a sample using the balance, measure volumes using graduated cylinder, explore...
NOAA
Watch the Screen!
Can a sponge cure cancer? Life science pupils visit the drugstore under the sea in the fifth instructional activity of six. Working groups research the topic then get hands-on experience by testing the inhibiting effects of several...
Curated OER
Lesson 5: Boyle's Law
Students participate in a lab to verify Boyle's Law using applied force (weight) to do work on a closed isolated system of air. "Elasticity of Gases Apparatus, BASIX" from Sargent-Welch is the syringe apparatus used to measure volume...
Benjamin Franklin High School
Saxon Math: Algebra 2 (Section 3)
In this third of a twelve-part series, the focus moves from using matrices to solving systems of equations with substitution and elimination, including more than two dimensions and variables in equations, and analyzing statistical data....
LABScI
Freezing Point Depression: Why Don’t Oceans Freeze?
Can you go ice fishing in the ocean? Learners examine the freezing point of different saltwater solutions. Each solution has a different concentration of salt. By comparing the freezing points graphically, they make conclusions...
Curated OER
Solubility Product of a Hydroxide
Learners determine the solubility product constant and the concentration of a hydroxide. In this solubility product lesson plan, students use a solution of calcium hydroxide to neutralize a known concentration of hydrochloric acid. They...
LABScI
Electrolysis: Splitting Water
Explore the chemical components of water through an electrolysis reaction. Scholars use a battery to divide various water solutions into different gases. As they collect the gases, they measure the volume and make a comparison to the...
Curated OER
Observing and Identifying Matter
For this observing and identifying matter worksheet, students use a cookie in a bag and list 10 different descriptions of the cookie. They draw and label their cookie and given the cookie in the bag to their teacher who mixes all the...
Curated OER
Conservation Station
Second graders, in groups, measure the volume of four containers that vary in shape and size.
Curated OER
Thirsty Rocks: Please "Porous" a Drink!
A simple activity goes a long way in demonstrating the property of porosity to your rock hounds. They will mass a specimen of dry sandstone and then soak it in a pre-measured amount of water. After seven minutes, they once again measure...
Curated OER
#24 How Much Air Is In Foamed Polystyrene Products?
Students are challenged to come up with a good estimate of the amount of air in foamed polystyrene products. They use this gas evolution experiment and as such have students measure the gas generated when foamed polystyrene is degassed...
Curated OER
Discovering Density
If you have a set of six various metal rods, you can use this lab activity to challenge science students to calculate their densities. They will use a triple beam balance to measure the mass and the micrometer and ruler determine the...
Curated OER
Estimating Errors in Chemistry
Estimating Errors in Chemistry is a detailed handout that illustrates the importance of calculating the percent error when working in the chemistry lab. There are no actual problems to solve, just notes and examples of calculations. Hand...
Curated OER
Oobleck
Here is a good lesson which aptly describes how to do the classic "Oobleck" lab with your young scientists. Unfortunately, the "Oobleck Investigation Sheet" in the plan doesn't open. However, this is a very clear description about how to...
Curated OER
Mass-Mass Relationship
Students investigate mass-mass relationships in the lab. In this mass-mass relationship lesson plan, students mix sodium carbonate with hydrochloric acid to produce sodium chloride, water and carbon dioxide. Students use the amount of...
Space Awareness
Oceans on the Rise
Temperature rises and land disappears! Through a lab exploration, learners understand the effect of temperature increase on water similar to the effect of global warming on our oceans. As they heat the water in a flask, they measure the...
Virginia Department of Education
Aspirin Analysis
Laughter may be the best medicine, but aspirin is also important. Young chemists analyze aspirin tablets using titration in this lab experiment. They then repeat the entire experiment using a different aspirin brand.