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Activity #8 U Are So Dense!
Middle schoolers watch as the teacher demonstrates: if a single liquid is placed in a U-shaped tube, the level of liquid on both sides are the same. When the mass is greater on one side than the other, liquid is pushed from one side to...
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Introduction to Gas Chromatography
Students analyze gas chromatograms and suggest various applications for gas chromatography.
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Windows on Life
Students explore and observe living development using live fertilized chicken eggs. They open the eggs approximately 72 hrs after fertilization and make observations for several days.
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Determining Liquid Densities
Students practice determining liquid densities in a short, hands-on lab activity. Students use a graduated cylinder to measure out 100 milliliters of a liquid, find its mass using a balance, and record measurements in a data table....
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Hand washing Laboratory Activities
Young scholars are exposed to the benefits of many antimicrobial soaps to prevent infections. In the food-service industry, studies indicate that inadequate hand washing and cross-contamination is responsible
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Extraction of DNA from White Onion
Students investigate techniques involved in extracting and isolating DNA. Students extract and observe onion DNA.
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Biological Communities
Students identify consumers and producers in different communities. Students collect a variety of soil samples and record organisms found in the samples.
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Diffusion of Molecules
Students study the process for diffusion of molecules. In this chemistry lesson, students understand molecular movement, develop skills for a chemistry investigation, develop skills in making hypotheses, develop observational skills, and...
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Sink or Swim
Students define density and explain how to determine the density of an object. Students participate in a demonstration that shows the differences in the densities of different liquids and how they affect the liquid's physical properties.
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It's the Slime Time
Students experiment to understand the basic concept of polymerization and to understand the dissolution theory. Student experiment with polymers to understand its behavior and the mechanical behavior of polymer networks.
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Flower Pigments
Middle schoolers experiment with Thin Layer Chromatography to separate pigments found in flower petals.
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Plant And Animal Cells
Students identify parts of plant and animal cells and describe the functions of each part. They distinguish between plant and animal cells. After a lecture/demo, students perform experiments which help them construct models of plant and...
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Investigating Density: Heavy Ice
Students end up learning the formula for density and calculate the densities of various materials, and predict if they sink or float.
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Mystery of the Eleven Unknown Substances
Fourth graders identify eleven white substances that are commonly found in the household. They, in pairs, perform experiments on a variety of substances, and must identify them based on the reactions they observe.
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Diffusion Of Molecules
Students investigate molecular movement while studying how to perform a chemistry investigation.
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Designing a Flotation Strategy for the Purification of Recycling
Twelfth graders work in teams to design a method of recycled plastics purification by flotation. They base their design on the concept that different kinds of plastics have different densities and keep overall costs and purification time...
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DNA Extraction From a Variety of Tissue Samples
Students, working in cooperative groups, extract very impure samples of DNA from a number of tissue samples. They determine how the samples can be preserved and how they are similar.
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SEXUAL LIFE CYCLE DEVELOPMENT USING MONOCYSTIS
Students perform a lab to becoe familar with scientific concepts. The skill of inquiry is essential and this lesson furthers its development. The intelligence of kinesthetics is used as learners perform the many aspects of this lab...
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Who Lives In The Water
Students investigate the environment of a stream or lake to collect and observe macroinvertebrates in their natural environment. They record data and summarize the information obtained. Students look to see if there has been any human...
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DNA Isolation
Students use scientific methods to investigate the concept of DNA. They observe the DNA of human cheek cells. This is done with the use of a lab experience. Students record their observations and reflect upon on how each organism is...
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Getting the Minerals Out
Students explore the tissues of the bone. They discuss bone composition and physiology. Students perform experiments to compare and contrast the decalcifying properties of several liquids.
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How Clean Is Our Water?
Students examine samples of water to determine its cleanliness. They visit a waste treatment plant and/or reservoir. Students explore what protects the water supply from contamination by chemical or organize pollution. They trace the...
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Cells and Cancer
Young scholars idenitfy that cancer is a growth of mutated cells and that cancer cells are only one type of cell that causes disease in our body. They also identify that all eukaryotic cells contain a nucleus, cytoskeleton, and a cell...
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Using Hazard Symbols
In this hazards worksheet, students determine what the different hazard symbols mean and then match the symbols that would be found on specific chemicals. This worksheet has 1 matching and 3 short answer questions.
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