In 1879, Sir William Crookes discovered the fourth state of matter, plasma. The presentation covers states of matter, phase changes, density, pressure Pascal's Principle, buoyant force, Archimedes' Principle, Bernoulli's Principle,...

Explore how electricity splits water molecules into hydrogen and oxygen. Learners begin by calculating the voltage necessary to separate the water. They then perform the experiment and measure the ratio of hydrogen and oxygen bubbles.

It's there, even though no one can see it. Scholars create two different-sized parachutes out of shopping bags, then let them fall through the air. They should see that the larger parachute falls more slowly and interpret this to mean...

Here is an extensive reading resource that addresses our climate change crisis. It thoroughly explains the greenhouse effect, related Earth cycles, and the history of climate change. Use it as part of the intended unit, published by the...

Believe in the invisible and convince the class that tiny particles exist even if they can't see them! A thorough lesson investigates all phases of matter and provides pupils hands-on experiences that demonstrate that all matter is made...

Chemistry classes will appreciate this color-coded, single-page reference sheet for The Standard Model of particle physics. It is divided into two main sections: elementary particles and compound particles, both with their antiparticles....

The cycle of energy is important to many different systems on Earth. Scholars use questioning and observation to investigate the differences between renewable and non-renewable resources and how they relate to global changes. They...

Students determine the effect of temperature on the motion of particles. They study the difference between particles in a gas, liquid, and a solid and see how the characteristics of solids, liquids, and gases can be explained by particle...

In this chemistry instructional activity, learners calculate to find the molar mass of water. Then they identify how many moles of hydrogen atoms and oxygen atoms they would have in a beaker. Students also write the chemical formula of...

In this compounds activity, students compare separating elements of a compound and substances in a mixture. Students review melting and boiling point. This activity has 1 fill in the blank and 5 short answer questions.

Students investigate energy. In this Physics lesson, students explore different sources of energy: heat, nuclear, and chemical. Students sing an electricity song.

Seventh graders distinguish between physical and chemical changes in both natural and technological settings. They identify the reactants and products for a given chemical reaction. they then write simple chemical equations given the...

Studdnts research ancient texts and compare ancient Greek atomic theories, as used in the production of silver, to modern theories.

In this molecular formula instructional activity students fill in a table describing elements and chemical formulas. They identify, elements by type and how they bond. The student analyze molecular formulas to identify the number of...

Middle school chemists visit interactive websites in order to discover what happens to molecular motion when heat is added to matter. They conduct an experiment that demonstrates the expansion of matter with the addition of heat. A lab...

Do solids, liquids, and gases even matter? The presentation focuses on changes in matter, including phases, Boyle's Law, Charles' Law, and physical changes. 

Binary compounds are explained with the periodic table, atomic charges, and examples. Viewers are taught to name binary compounds and then are presented with a chart of cations and ions. Finally, they see a few photos of forms of silicon...

For this chemistry worksheet, students identify and write how many significant figures they would use for each problem. Then they round the answers to the appropriate number of significant figures. Finally, students calculate the mass of...

In this molecule worksheet, students will use a diagram of a water molecule to see how many electrons and protons the molecule has and use a glycerol molecule diagram to discover carbon atom bonds. 5 fill-in-the-blank questions.

Students explain the mole concept and use this concept to prepare chemical solutions of particular molarities.

Students work together to explain the VSEPR theory and how it relates to molecules. They name electron pairs that can surround the central atom of an organism. They discuss the factors that determine the polarity of a molecule as well.

For this moles worksheet, students determine the mole ratio in given compounds and calculate the number of moles of specific elements in chemical compounds. This worksheet has 19 problems to solve.

Young scholars explore the concept of molecular modeling and differentiate between saturated and unsaturated compounds. In small groups, they identify molecular formulas, complete a chart comparing alkanes, alkenes, and alkynes, and...

In this chemistry worksheet, learners describe an atom, its parts, the charges of these parts, and atoms life functions. Then they explain what the octet rule states for the placements of electrons around the nucleus of an atom. Students...