Curated OER
Generating Hypotheses and Experimental Design 1
Here is a thorough exercise in forming hypotheses for scientific investigations. Young scientists consider factors that may be related to the question they would like to address. They think through measurable changes that may result from...
Physics Classroom
Action at a Distance Lab
The concepts involved with static electricity are typically taught in upper elementary physical science units. The lab described in this resource has pupils examine the behavior of small pieces of paper and a balloon when a charged piece...
Cold Spring Harbor Laboratory
Mutations Are Changes in Genetic Information
A red delicious apple tree with a simple mutation means we now benefit from the existence of golden delicious apples. Learn how simple mutations change genetic information in DNA sequences. Using biographies, videos, and animations,...
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
Chemistry - Science 10
In this chemistry science worksheet, students identify the parts of a chemical reactions. Students name the major particles of the atom. Students apply knowledge about the atom, theories, and models.
Curated OER
Grade 9 Science Review
In this 9th grade science review worksheet, high schoolers complete 63 true or false questions on topics such as atomic notation, isotopes, covalent bonds, Ohm's law, and electric circuits.
Curated OER
Science: Acid Base Quiz
In this science: acid base quiz worksheet, students answer 20 true or false questions, not interactively, about acids and bases, then scroll down to check their answers.
Curated OER
Science Crossword Puzzles - Atoms and Matter
For this science crossword puzzle worksheet, learners determine the answers to 7 clues using vocabulary associated with atoms and matter. They fill in the puzzle both across and down.
Curated OER
Acids and Bases
In this acid and base worksheet, high schoolers read about the characteristics of acid and bases, the pH scale and neutralization reactions. Students match 10 terms with their definitions related to acids, bases and pH, they identify...
Curated OER
Titration
In this titration worksheet, high schoolers read about titrations or neutralization reactions used to determine the concentration of acids or bases. They are given sample problems used to find the concentrations of acids or bases....
Curated OER
Milk Glue
Students observe a precipitation and neutralization reaction and learn to filter the products of the precipitation reaction. In this precipitation and neutralization lesson plan, students create curds and whey using milk and vinegar....
Curated OER
Acids and Bases Spring Worksheet
In this acids and bases worksheet, students answer 20 questions about acids, bases, neutralization reactions, buffers and molar solutions.
Virginia Department of Education
Predicting Products and Writing Equations
A chemistry lesson presents 14 chemical reactions for scholars to observe, write the equation, and balance the equations. Additionally, it provides ways to extend the activity as it relates to catalysts.
Curated OER
Experimental Project: Titration of Antacids
Students compare antacid tablets by doing a titration. In this titration of antacids lesson plan, students read about antacids that neutralize acid indigestion and they perform a back titration of the antacids dissolved in hydrochloric...
Teach Learn Chem
Ions in Chemical Compounds
In this ions activity, students complete a table by combining the given ions in different combinations to make a neutrally charged chemical compound.
Curated OER
Chapter 15 Review/Acid-Base Titration and pH
Chemistry stars calculate ion concentrations, pOH, or pH in different solutions. For questions in the latter half of the worksheet, they also have to explain why a solution is acidic, basic, or neutral and solve for molarity of a solute....
Concord Consortium
Breaking a Molecular Bond
Breaking up is hard, especially with a third part involved! Watch as molecules of hydrogen, oxygen, and nitrogen try to keep it together as a neutral third atom bombards them. Users control the reactive molecules and the velocity of the...
Royal Society of Chemistry
pH and pOH
Feeling a little neutral about your pH and pOH teaching strategy? Perk it up with engaging puzzles! Young scientists relate ion concentration to pH and pOH, as well as the dissociation constant for water. The resource is available as an...
Chymist
Tritration: Standardization of a Base and Analysis of Stomach Antacid Tablets
Do antacid tablets really do what they claim? An experimental lesson attempts to answer this question. Individuals practice the process of titration during the first part of the experiment. They then use those skills to neutralize an...
Howard Hughes Medical Institute
Color Variation Over Time in Rock Pocket Mouse Populations
While many mutations are neutral, those that appear advantageous increase in frequency in a population. Scholars use illustrations to make predictions about populations of mice. They follow it up with a video to confirm or refute their...
Curated OER
Acids and Bases
In this acids and bases learning exercise, students write equations for dissociation reactions, they complete neutralization reactions and they identify strong acids and strong bases.
Curated OER
Regents High School Examination PHYSICAL SETTING CHEMISTRY 2006
The 2006 version of the Regents High School Exam is just as thorough as the rest of them! Assess chemistry learners on an entire year's curriculum when they take this thirteen page test.
Curated OER
2002 U.S. National Chemistry Olympiad National Exam - Part I
As to be expected from the American Chemical Society Olympiad Examinations Task Force, this 60-question test tops the charts in terms of excellence. It consists entirely of multiple choice questions designed to assess a year's worth of...
Howard Hughes Medical Institute
How Novel Icefish Genes Can Improve Human Health
Designed to accompany the 13-minute video The Making of the Fittest: The Birth and Death of Genes, this handout serves as both a viewing guide during the video and an analysis of how the adaptations of the icefish might help treat...