Chymist
Determination of the Volume of CO2 in Pop Rocks
Where does the pop in pop rocks come from? An engaging activity asks scholars to measure the amount of carbon dioxide in a package of Pop Rocks candy. Learners dissolve the candy in water and use the solubility of CO2 to determine its mass.
Curated OER
Root Caps and the Effect on Gravity Sensing
Students conduct an experiment to determine how the absence of a root cap affects a plant's ability to sense gravity. They make comparisons between capped and decapped roots.
Curated OER
Flour Beetle
Learners observe the life cycle of the common flour beetle and make observations of its life stages. They also design and implement an investigation on food preference for the beetle and record data over a period of several months....
Curated OER
My Favorite Biology Supplies
Here are some biology laboratory supplies that I can't live without.
Curated OER
Dissolved Oxygen in an Aquatic Ecosystem
Students explain why dissolved oxygen is important in aquatic ecosystems. They evaluate the optimal dissolved oxygen levels for living organisms.
Curated OER
Invertebrate Diversity
Students observe different animals with bilateral symmetry. In this biology lesson, students compare how these animals move. They discuss the evolutionary history of observed animals.
Curated OER
Biological Concepts
Students perform a transection of a redworm. They discuss spinal cord injuries in humans. Students compare the ability of the redworm to regenerate the ventral nerve cord with the inability of humans to repair damage to the dorsal nerve...
Curated OER
Temperature Affects The Heart Rate
Learners relate heart rate and development to environmental conditions through experiment. In cooperative groups, students record the heart rate in developing zebra fish. Groups create a standard curve to predict the temperature at...
Curated OER
Alfalfa Butterfly/Caterpillar Lifecycle Investigation
Students collect and record data. They model specimens. Students identify sex of butterflies. They analyze data. Students make conclusions based on collected data. They compare and contrast the different groups of insects such as...
Texas State University
Earth: Deposition and Lithification
Geology geniuses analyze sediment samples with a hand lens and sort according to physical characteristics. They also learn about the processes of cementation, compaction, and lithification within the rock cycle. The lesson plan is...
Curated OER
Black Death Biology
Students in pairs explore the transmission of the Plague, through experimentation. Cooperative groups use the scientific method to solve the fictional problem of a bacteria spreading in the Amazon. Groups also create a vector to visually...
Carolina Biological Supply
Aquarium Equilibrium Demonstration
Sometimes equilibrium is a difficult concept for a beginning chemist to grasp. Here is a demonstration that helps them to visualize what is happening at a molecular level. Using two aquariums and different sizes of beakers to transfer...
Curated OER
Elastic Recoil in Arteries and Veins
A lab in which high schoolers examine the difference between arteries and veins. Budding biologists will find out which blood vessel can stretch furthest, recording their data in a table then answering several questions evaluating their...
Curated OER
What's That Brown Fuzzy Stuff on My Plum?
Students use Koch's Postulates to determine that a specific organism is the root cause of a specific disease and identify what Koch's Postulates are within a protocol. They describe symptoms and signs of diseased fruit and isolate fungal...
Curated OER
Ecosystem Damage from Household Cleaners
Third graders assess the damage done to various ecosystems by cleaning products and discover how scientists test water quality. Using stream water and common household cleaning agents, they work in groups to test for pH levels. Once...
Curated OER
Sediment Deposition Lab
Students set up a stream table, observe erosion, and record data on where various sizes of sediments settle. They draw conclusions as to what kind of sedimentary rock form in what locations.
Curated OER
Does the increased use of fertilizers effect biodiversity?
Students conduct a hands-on lab activity in which they analyze a sample of water from a local stream or pond. They introduce a fertilizer solution into the sample and analyze and describe their findings.
Curated OER
Does the Introduction of Pesticides and Fertilizers Alter an Aquatic Ecosystem?
Students conduct an experiment using a small sample from a local water source. They introduce fertilizers and pesticides, separately, and carefully examine the results in their simulated aquatic ecosystem.
Curated OER
Embryological Development Using Medaka Fish
Students analyze and record major events that occur in the development of Medaka fish eggs from fertilization to hatching. In small group, students describe the processes involved, creating a timeline of the major events in the...
Curated OER
Collaboration via Slime Mold
Young scholars combine the skills and concepts that they have developed to ask a simple question which can be answered on a Petri plate. They ask questions and design experiments for verification through collaboration with their classmates.
Curated OER
Shells on the Mountain Top?
Students work in groups to remove fossils from sediments, classifying as many organisms and parts of organisms as possible into major groups. They study the data from each formation and make conclusions about the types of organisms and...
Curated OER
Introduction To Insect & Spider Body Parts
Students inspect several different specimens of insects and spiders to determine characteristics that are similar and different between the two groups. They identify the basic body structure of spiders and insects and then predict where...
Curated OER
Observing Compost Invertebrates
Second graders examine compost piles and what invertebrates help decompose the organic matter. In this compost invertebrates lesson students collect invertebrates found in a compost pile and examine them.
Curated OER
Temperature and Brine Shrimp Eggs
Students determine the optimal temperature at which brine shrimp eggs hatch and develop. They evaluate the changes, if any, which occur in a brine shrimp culture at various temperatures.