In this counting atoms in a molecule worksheet, students read about the molecule propanal that was discovered by the giant radio telescope in the Milky Way Galaxy. Students solve 6 problems where they find the number of atoms in the...

In this atoms and sugar molecules worksheet, students are given the structural composition of the sugar molecule maltose. They determine the number of each type of atom in the molecule, they find the ratio of hydrogen to oxygen atoms and...

In this IBEX satellite worksheet, students read about the Energetic Neutral Atoms that are detected by the IBEX satellite. Students use a given hypothetical data string to determine the number of particles detected and create an 'image'...

In this Big Bang Theory worksheet, high schoolers read about how scientists simulate the original Big Bang conditions using atom smashers. Students solve 4 problems given about the Big Bang. They find the average collision energy of...

In "Nuclear Arthmetic," first-time physical scientists examine atomic structure and the periodic table of elements. The are given the formula, "N = A-Z," in which N is the number of neutrons, A is the atomic mass, and Z is the atomic...

Make your lesson on radioactive decay pop with this lab exercise. Using popcorn kernels spread over a tabletop, participants pick up all of those that point toward the back of the room, that is, those that represent decayed atoms. As the...

In this magnetic storms worksheet, students use a given formula for the volume of a ring-shaped disk to solve 2 questions about the total atoms present in the disk and the total mass of the Ring Current.

In this moon's atmosphere worksheet, students read about the tenuous lunar atmosphere and solve 4 problems. They find the density of helium particles, they find the grams of given atoms in the moon's atmosphere and they find the volume...

In this Algebra I/Algebra II worksheet, students solve problems involving direct variation.  The two page worksheet contains a combination of twelve multiple choice and free response questions.  Answers are included. 

For this ratio and proportion worksheet, students solve 22 short answer and multiple choice problems.  Students use rates, proportions, and ratios to solve each problem.

In this aircraft avionics worksheet, science fans read about the first unmanned air vehicle that collects data about the Earth and is subject to damage by cosmic ray showers. Pupils analyze two graphs of data showing the neutron flux vs....

In this algebra worksheet, students solve exponential problems by rewriting it in standard form. They rewrite number using scientific notations and solve word problems. There are 10 problems with and answer key.

In this fractions in chemistry learning exercise, students solve 2 problems where they state all the answers as simple fractions or integers. They determine ratios of molecules in gasoline and they find ratio of molecules in the creation...

In this XZ Tauri and coronal mass ejections worksheet, students use 3 photographs taken by the Hubble Space Telescope to solve 4 problems. They find the scale of the images, they determine the number of kilometers the XZ Tauri cloud...

In this moon instructional activity, students read about the data collected from the Deep Impact/EPOXI and Cassini missions to the moon that have detected the presence of hydroxyl molecules under the moon's polar craters. Students solve...

In this rate, ratio, and proportion worksheet, 7th graders solve ten multiple-choice problems.  The solutions are provided by clicking on the "show answers" on the bottom of the page.

In this energy use worksheet, students read about kilowatts and solve 2 problems. They find the costs to run certain electrical items for a given amount of time and they determine the electricity consumption of an accelerator that runs...