Curated OER
Acid Rain
Students understand the dynamics of acid rain and its impact on the living and non-living environment. They hypothesize how acid rain affects water pH levels in two lake systems with differing watershed features.
Teach Engineering
Breathing Cells
Pairs work together to determine whether unknown solutions are either acids or bases by using a red cabbage indicator solution. After determining the general pH of the unknown solution, classmates blow into the same indicator after...
Balanced Assessment
Genetic Codes
Determine the number of possible genetic codes. Class members are challenged to determine the number of possibilities of a genetic code that is 20 bases long. They continue to explore the average lengths of broken RNA molecules.
Teach Engineering
Pill Dissolving Demo
Plop, plop, fizz, fizz, oh that one is the fastest. The teacher demonstration is the second part of a four-part series. The class observes how different pill types dissolve in simulated stomach acid. They determine which one dissolves...
Curated OER
DNA, RNA, Protein Synthesis, & Mutation
For this biology worksheet, students identify and label the diagram shown by stating what each part of the diagram represents on the line. Then they use the DNA strand as the original strand and complete the data table. Students also...
Curated OER
An Introduction to Acids and Bases
Students explore acids and bases. In this lesson about acids and bases, students do an experiment to test certain items to determine what they are. Students use cabbage and litmus paper as indicators. Students understand how to sort the...
Curated OER
Acid Rain And Plants
Students observe the effects of acid rain on plants. They simulate an experiment using vinegar or lemon water. They observe the impact of acids on plants and recognize how acid rain can affect the environment. They examine their plants...
Curated OER
Chapter 14 Review/Acids and Bases
Two pages take chemistry learners on a survey of acids and bases. High schoolers write formulas and name compounds. They identify conjugate bases and acids with the aid of a table (not provided). On the second page, two different acids...
Curated OER
Water Quality and Environmental Pollution
Learners use litmus paper to begin to discover the qualities of acids and bases. They learn about pH by testing clear liquids for acidity with purple cabbage juice as an indicator. The video Streamkeeper, with Bill Nye, and other video...
Curated OER
From Gene to Protein Study Guide
In this biology worksheet, students review and answer different questions based upon the molecules of DNA and RNA. They look at the specific protein order of the DNA strand and its synthesis.
NASA
Christa's Lost Lesson: Effervescence
How are chemical reactions affected by gravity? Learners explore the phenomenon of effervescence as part of the Christa's Lost Lessons series. They compare findings in an experiment on effervescence to a video of a similar experiment in...
NOAA
Why Should I Care?: Show How Increased Carbon Dioxide Makes the Ocean More Acidic
How does a change in pH affect the ocean ecosystem? Scholars explore the idea by making an acid-base indicator in part seven of the 10-installment Discover Your Changing World series. First, they explore impacts of carbon dioxide in...
Royal Society of Chemistry
Indicators
How do chemists know what indicator solution is the perfect match for the acid or base they're studying? Discover a rainbow of indicator-related properties with an Internet resource. Individuals relate the indicator solution to its...
NASA
Cleaning Water
From their sweat to the water vapor in their breath, astronauts recycle every possible drop of water while in space. After watching a short video describing the different ways materials are recycled and reused in space...
Learning Games Lab
The pH Scale and Meter Calibration
What are the different ways to test for pH? First, scholars explore the pH scale and a common way to test for acidity and alkalinity. Then, they learn about the importance of pH in food safety and why variance in pH could potentially...
Curated OER
Practice Final
A full-fledged practice final prepares pupils for their general chemistry final exam. If they complete these 57 multiple-choice questions correctly, they will be well-prepared. Note: even though the questions are multiple-choice, there...
LABScI
Acids and Bases: Cabbage Juice pH Indicator
Explore the range of pH using an assortment of household liquids. Scholars create their own pH indicators from cabbage and determine the pH of several liquids. To further their exploration, individuals use the same liquids to create...
Curated OER
AP: Chapter 20: DNA Technology
This nine-page biotechnology resource contains six pages of questions regarding DNA technology. Questions cover cloning, restriction enzymes, the polymerase chain reaction, different techniques, the human genome project, and more. The...
Curated OER
The Environment
Students explore the issues that influence our environment and research ways to decrease the negative impact that humans have on the environment. Misconceptions about environmental issues are addressed in this lesson.
Curated OER
DNA Extraction from Yeast Cells
Students explore DNA. They work in groups and mix prepared detergent/ salt solution, meat tenderizer solution, Fleischman's yeast and water to extract DNA from yeast. Observations are recorded.
Curated OER
Household Chemicals
In this chemicals worksheet, students review how to read chemical labels, define an acid-base indicator, and decide which way strong acids can be dangerous. This worksheet has 15 short answer and 20 fill in the blank questions.
Curated OER
HOW IS PH DETERMINED?
Pupils estimate the pH based on the use of an unknown substance, determine whether an unknown substance is acid, base or neutral, and evaluate, by the pH determination, which of the unknowns is the strongest acid or base.
Curated OER
Chemistry quiz
In this chemistry worksheet, students answer short answer and true and false questions about acids, bases, atoms, elements, and more. Students complete 20 questions.
Curated OER
Determining pH
Eighth graders explain the difference between acids, bases and neutral solutions. In this chemistry activity, 8th graders describe the properties of each. They determine the pH of an unknown solution using the indicator paper and pH scale.