New ReviewHumans only make up 0.01 percent of all life forms on Earth. We sure know how to make an impact though! An episode of the It's Okay to be Smart series examines the proportion of different species that inhabit Earth. The narrator compares...

New ReviewWater vapor released by trees in the Amazon creates a floating river. In fact, it's the largest river on Earth! A video presentation examines the science behind the water vapor and explains how rains seeds form to create clouds.

New ReviewEveryone knows the smallest chips settle to the bottom of the bag, but why? An episode from a series of science videos describes the percolation effect using both demonstrations and animation. Scholars watch as smaller particles fill...

New ReviewA speed limit sign in Europe might be misleading if you don't understand different unit systems. A video presentation describes measurement units for length, mass, and capacity to help viewers differentiate between them. The...

New ReviewA short video introduces the triangle that illustrates how to find any value given the other two in the density formula. Class members use the triangle to work several problems to find the mass, volume, or density of an object.

New ReviewCompounding is dividing units. Pupils practice using compound measures such as units for speed and density to solve problems that range from straightforward speed problems to those requiring conversions. The last few items challenge...

New ReviewLift the weight of teaching unit conversions! A video presentation demonstrates conversions between kilograms, pounds, and grams. The narrator explains the conversion factors and then completes several examples of each.

New ReviewA super bear is a whole lot of gummy bear. Scholars hone their estimation skills by completing an activity. Given the masses of a mini gummy bear and a regular gummy bear, they must determine the number of each needed to have the same...

New ReviewTwo different groups of scientists published scientific papers in 1980 offering proof of a large asteroid hitting Earth between the Cretaceous and Tertiary layers of ground. Scholars use a worksheet to analyze the same type of data as...

What do budding scientists know about moles and reactions? Using an attention-grabbing lab experiment, young scholars collect data to apply the law of conservation of mass to predict the mass of gaseous products. They examine several...

Sometimes modeling is the best approach to working with microscopic particles. A lab investigation models a fictional element using pasta. The setup uses three different pasta types to represent three different isotopes. Learners...

Mix a great resource in to your engineering repertoire. An engaging video discusses diffusion and mass transfer. It explains how a difference in concentration is the driving force for this mechanism. 

Are brighter stars actually brighter? Turns out they are probably just closer! A presentation compares features of stars to our favorite star, the sun. In addition, solar lovers learn to classify stars based on their masses,...

Ready, aim ... learn! Increase scholars' understanding of force, mass, distance, and angle using an engaging interactive. Pupils participate in a series of rescue missions where they launch supplies at a target with an adjustable cannon....

Most pupils learn quickly how to apply Newton's Second Law equation to calculate net force. However, many struggle to determine net force before calculating the value of an unknown force from a force diagram. As part of a larger series...

Budding scientists fall hard for a gravitational field strength activity! Physics pupils compare the masses and distances relative to the center of planets using an interactive from a Circular and Satellite Motion series. Individuals...

Let's talk torque! Science scholars evaluate experimental setups during an interactive from the Rotation and Balance series. Individuals calculate the torque of differently arranged weights to determine the effect they have on a balanced...

Are you feeling weighed down by your current gravitation presentation? Assign a hands-on interactive instead! Physics scholars work through a series of progressively harder questions about mass, distance, and gravity using an online...

Do your young physicists get a little unbalanced when it comes to talking about torque? Scholars examine the effects of weight and distance on a balanced system with a simple interactive from the Rotation and Balance series. The resource...

How do police determine the speed of a car that has hit a stopped vehicle? Scholars determine the momentum of the car system both before and after a collision. They identify instances where the law of conservation of momentum appears to...

Why are gym walls padded and cars required to have air bags? Scholars observe two similar situations, such as those listed above, with only one variable altered. They identify the different variable and determine how the variation...

How do law enforcement officers determine the strength of an explosion based on the movement of objects around the point of origin? Scholars inspect the relative mass and velocities of two cars before and after an explosion. They perform...

Scholars practice calculating spring constants before performing hands-on experiments. They compare data for parallel and series springs. Finally, they learn how spring mechanics find applications in biotechnology, such as prosthetic limbs.

Where does the mass for a growing tree come from? Scholars consider a few different hypotheses and guess which is correct. They then analyze data from different experiments to understand which concepts science supports.