National Nanotechnology Infrastructure Network
Hiding Behind the Mask
Microchips are a man-made wonder. Investigate the manufacturing wonder with a hands-on inquiry-based lesson. Scholars simulate the process of pattern transfer using photoresist. Their conclusion identifies how their process replicates...
It's About Time
Elements and Compounds
Young scientists use electrolysis to separate water into its elements before experimenting with fire to learn about their properties. A helpful resource provides a reading passage and analysis questions.
Curated OER
Substitution and Elimination Reactions
In this substitution and elimination reactions worksheet, students complete 11 reactions by writing the structural formulas for the products. If no reaction occurs, they write N.R. They also write structures of the products for 3...
Pearson
The Chemical Context of Life
An educational presentation includes atoms, molecules, the four major elements, as well as neutrons and protons. Additionally, slides focus on atomic number, mass number, atomic weight, polar and nonpolar covalent bonding, ionic bonds,...
Cornell University
Chemical Reactions
Investigate the Law of Conservation of Mass through a lab exploration. Individuals combine materials to initiate chemical reactions. They monitor for signs of reactions and measure the masses before and after the reactions for comparison.
Cornell University
What Is Rust?
Why do metals rust differently? Scholars experiment with metal combinations in a hands-on activity. They create unique environments with different metals and compare the rate and amount of rust for each.
Concord Consortium
Acid Test
This isn't your typical basic lesson—it's more acidic! Learners use pH information to determine the hydroxide ion concentration of different substances and then use these values to analyze information. The calculations require...
Curated OER
The Blast Furnace
In this chemical reactions worksheet, students practice writing chemical formulas, word equations, and symbol equations. Students identify the types of reactions. This worksheet has 7 problems to solve.
Curated OER
Science: Quick Freeze
Students observe an experiment of freezing point depression using club soda. Through observation, they note that the carbon dioxide molecules disrupt the capacity of the water molecules to solidify. Precautions must be taken to assure...
Curated OER
Learning Outcomes
In this science worksheet, students explore the learning outcomes for a unit on chemical reactions. Students define 60 vocabulary words and answer a list of questions for each topic.
Curated OER
Carbon Monoxide and Carbon Dioxide
A short slide show to illustrate the density of carbon dioxide and monoxide. An interesting look at the safety aspects to prevent CO poisoning, and the biological mechanisms by which it does harm. This elaborates on the exchange of blood...
Curated OER
Spontaneity, Disorder and Entropy
In this physical and chemical change worksheet, students calculate the entropy change involved in different chemical changes. This worksheet has 4 problems to solve.
Curated OER
Are Our Chemical Measurements Accurate or Precise?
What is the difference between accuracy and precision? This worksheet has students define the terms accuracy and precision, and compare bulleye diagrams to find examples of both. Students analyze given data and determine the accuracy and...
Curated OER
The Ties that Bind
In this bonding worksheet, students read about the types of bonds that hold compounds together. They are given fifteen common materials and they identify the types of bonds that hold each together.
Curated OER
Interpreting pH
In this pH learning exercise, learners read about pH and the concentration of ions in solutions that are acidic and basic. They answer four questions about pH and determine the concentration of hydronium ions and the pH given...
Curated OER
Water: The Neutral Substance
For this water worksheet, students read about hydrogen bonds in water and the differences in electronegativity between the oxygen atom and the two hydrogen atoms in water. Students answer four questions about the structure of water and...
Curated OER
Forcing Electrons to Move
In this electrolytic cell learning exercise, students read about car batteries and how they produce electricity for cars to run. They answer six questions about electrolytic cells and oxidation-reduction reactions.
Curated OER
Marie Curie and the Naming of a Unit
In this radioactivity worksheet, students read about scientists who contributed to the discovery of radioactivity and radioactive elements. They read about Marie Curie and her contributions to science and the unit the "curie" which was...
Curated OER
Kinetics Review Sheet
In this kinetics learning exercise, students define 7 terms related to the energy of reactions, they find the average reaction rate in a reaction, they sketch an energy diagram for an endothermic reaction and they compare exothermic and...
Curated OER
Caesar Ciphers: An Introduction to Cryptography
Students brainstorm and discuss the concept of cryptography, the science of secrets in today's world and then focus on a system for sending secret messages used by Julius Caesar. They make a Caesar wheel assessing encrypting and...
Curated OER
Acids and Bases in Water
In this acids and bases worksheet, students read about what happens when an acid or base is added to water. Students complete 6 short answer questions.
Curated OER
Ice Cream
Students are shown an experiment making ice cream while discovering the freezing point depression. There are questions for students to answer after the demostration.
Curated OER
Solutions
In this solutions activity, students calculate molality and mole fraction. Students define colligative property and determine what affects the solubility of gas in solvents. This activity has 2 short answer questions and 9 problems to...
Curated OER
Elements, Compounds, and Mixtures
In this matter worksheet, students review the three forms of matter by reading a poem and completing 1 matching and 5 short answer questions.