In this experimental design and measurement worksheet, students answer questions about independent and dependent variables, they write hypotheses, they identify instruments that measure mass, weight, and volume and they calculate the...

In this volume worksheet, learners determine the number of cuboids needed to create a rectangular prism of a particular size. They determine the mass, volume and density of cereal boxes. Students determine the volume of rectangular...

Groups suspend objects within layers of liquids to determine the densities of different liquids and compare them to the densities of objects calculated in Part 1. The groups then carefully test their calculations by layering the...

What do we do when a dive is too dangerous for humans to accomplish? Send in the robots! Middle school scientists get acquainted with several different models of submersible robots in the second lesson of six from NOAA. Lab groups then...

Most scholars associate density with floating, but how do scientists determine the exact density of an unknown liquid? The third lesson in a seven-part series challenges scholars to find the mass and volume of two unknown liquids. Each...

Combine a little solid and a little water and the solution is clear! An experimental lesson has individuals make calculations to create a sample solution of a given volume and molarity. They then create the solutions using a virtual lab...

In this density worksheet, learners measure the mass and volume of assigned objects and calculate the density. They then find the mass and volume of two objects given their densities and volume and mass respectively.

Change the density of water by adding minerals. The presentation discusses density—from the definition to calculations—and applies it to the real world. It briefly mentions specific gravity, and finishes by showing Archimedes'...

Investigating the large numbers of science is the task in a simple but deep activity. Given a one-sentence problem set-up and some basic assumptions, the class sets off on an open-ended investigation that really gives some...

Substances with the same empirical and molecular formula must be differentiated by their structural formula. Part two in a series of 36 has pupils using chemical formulas to calculate how much of a compound is present in a given...

General chemistry class members engage in a mini-unit on mole conversions. Through nine lab activites with varying degrees of difficulty, they practice measuring mass and volume, molar calculations, and stoichiometry. Terrific...

In this elements worksheet, students use the relative atomic masses of given elements to calculate the relative formula mass. Students calculate the mass of compounds from given number of moles and determine the number of moles from a...

Mass and density — aren't they the same thing? This activity has groups use balance beams and water displacement to measure several objects. The pupils use the measurements to calculate the density of the objects. 

Need a fun solution to teaching ... solutions? A series of puzzles provides reinforcement to key molarity terms and calculations. Science scholars determine the concentration of several solutions before using the information to solve...

The difference between sinking and floating may be a little salt. Young experimenters analyze the effect of salt and temperature on the density of water. They use their results to predict the effect of climate change on ocean ecosystems.

For this moles, molecules and molecular mass worksheet, students solve 18 problems where they find the number of moles in a gas, they calculate the number of molecules in a sample of gas or they find the volume of gas in a...

For this mass worksheet, students determine the number of moles from a given molar mass and volume being sure that they use the correct conversion factors. This worksheet has 12 problems to solve.

In this volume worksheet, students determine the volume of cubes, prisms, and assorted shapes.  This three-page worksheet is designed for mental computation.  Answers are provided beside each question.  This three-page...

Students determine the molar volume of hydrogen gas. In this molar volume lesson plan, students find the molar volume of hydrogen produced in a reaction between magnesium and hydrochloric acid. They use a eudiometer to measure the volume...

Density: the reason a giant pumpkin will float, but a tiny cranberry won't. Lesson begins with a demonstration of two of the same-sized cubes having different densities. Then pupils take eight cubes, each of the same size, and have to...

In this density worksheet, students review how to rearrange the equation for density to solve for mass or volume. Then students complete 4 problems.

Elementary-aged scientists discover that all matter has mass. They are shown the difference between mass and weight, and learn how to calculate mass using the appropriate tools and methods. The scientific method is used while estimating...

Learning about the mole using rice is pretty nice! Help your chemistry scholars visualize the concept of a mole of substance with an easy-to-perform lab. Partnered pupils find the mass of a single grain of rice and relate this...

Swimmers know to float by turning their bodies horizontally rather than vertically, but why does that make a difference? In an interesting lesson, scholars explore buoyancy and the properties of air and water. They test cups to see which...