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Extracting DNA from Your Cells - Teacher Preparation Notes
Students extract their own DNA from cheek cells. For this biology instructional activity, students explain the replication process. They identify the structure and composition of DNA.
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How Are The Properties of Covalent Compounds Influenced By Chemical Bonding?
Students work together to observe the bond lengths of single, double and triple bonds. They make their own predictions about the strength of the bonds and chemical reactions. They answer discussion questions to complete the...
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Are Fruits And Vegetables Really Made of Cells?
Learners design and carry out an exercise to determine if a given fruit or vegetable is composed of cells. They dissect out sections of the fruit or vegetable, prepare stained slides, and make observations under a compound microscope.
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Diffusion Across a Selectively Permeable Membrane
Students investigate how water passes through cell membranes. In this biology lesson, students differentiate osmosis and diffusion. They illustrate the movement of water in both processes.
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Magnet Unit
Students examine magnets; what they are made of, how they work and where they come from.
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Cracking the Code - Cloning Paper Plasmid
Students explore the "genetic code." They observe how genes may be manipulated for genetic research, gene cloning, and genetic engineering. In a lab setting, students examine the mechanics involved in cutting and ligating DNAs into a...
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Bonding Theories
In this bonding worksheet, students fill in 8 blanks with the appropriate terms about theories of bonding, they determine if 6 statements are true or false, they match 5 terms with their meanings and they solve 1 problem related to...
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Cell physiology and chemistry
Students design an experiment to discriminate between chemical diffusion, osmosis, facilitated diffusion and active transport through a membrane. Be specific about predictions and interpretations!
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The Plasma Membrane
In this plasma membrane worksheet, students will explore how cells are able to maintain homeostasis and the function of the plasma membrane. This worksheet has 6 fill in the blank and 7 true or false questions.
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Sound All Around Us
Students make predictions about how sound is formed. They view and discuss a video that explores sound formation and attempt to identify the origin of different sounds.
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DNA Extraction
Students are able to extract and observe a visible amount of DNA from Escherichia coli cells. They discuss the properties of DNA. Students confirm the presence of DNA by a reaction with an indicator.
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Describe the Perfect Pathogen
Students develop a pathogen based upon their knowledge of pathogens and after presenting it to the class, they then suggest ways that the pathogen might be combated. Next they identify possible physical or behavioral changes in a...
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How Many Drops?
Students conduct a simple test to determine how many drops of each of three liquids can be placed on a penny before spilling over. They come up with an explanation for their observations about different amounts of liquids a penny can hold.
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Electrolysis of Water
Ninth graders examine the electrolysis of water by completing an experiment. In this water lesson students will explain how hydrogen can be extracted from water and how energy flows through an electrolysis system.
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Citric Acid Review Activity
Students study the Krebs's cycle and understand the steps at a functional level. For this cellular respiration lesson students complete different stations then do a written assignment.
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Causal Patterns in Density Phenomena
Students investigate the relationship between volume and mass in different liquids such as vegetable oil, rubbing alcohol and water. They measure the mass of several different volumes of each liquid and then graph the results as well as...
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WATER CHEMISTRY
Students list reasons why water is important and investigate and graph the freezing points of different solutions.
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Designer Genes
Students view a video on DNA. They discuss mitosis, meiosis and fertilization. They use strips of paper to simulate fertilization and analyze the genotype and phenotype of the combined chromosomes.
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The Big Burp:A Bad Day in the Paleocene
Students describe the overall events that occurred during the Paleocene extinction event as well as the processes that are believed to result in global warming after group research. They infer how a global warming event could have...
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Ice Cold
Young scholars design and conduct an experiment to investigate what happens when salt and ice come together and to determine if one form of salt is better for melting ice on steps and sidewalks.
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EGG-cellent POLYMER PACKAGING DESIGN
Students investigate the concept of a polymer using an experimental design of protecting an egg in a bookbag. They test the properties of polymers and form an educated solution to the proposed problem. Then they describe the steps used...
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The Water Cycle and Global Warming
Students study the flow of water in the environment. In this water cycle lesson students evaluate the consequences of changes in the water cycle using data.
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Giants of the Protozoa
Students describe and define xenophyophores. In this protozoa lesson students divide into groups and complete a lab activity.
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Nucleic Acid
In this chromosome worksheet students complete a crossword puzzle by answering questions on DNA, nucleic acids, nucleotides and RNA.
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