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With over 500 online simulations, virtual labs, and interactive cases for math and science—there’s a Gizmo for just about everybody. Let’s find yours.
Density
5 Minute Preview
Measure the mass and volume of a variety of objects, then place them into a beaker of liquid to see if they float or sink. Learn to predict whether objects will float or sink in water based...
Lesson Info Launch GizmoDensity Laboratory
5 Minute Preview
With a scale to measure mass, a graduated cylinder to measure volume, and a large beaker of liquid to observe flotation, the relationship between mass, volume, density, and flotation can be...
Lesson Info Launch GizmoDensity via Comparison
5 Minute Preview
Using four beakers of liquids with known densities, estimate the density of a variety of objects. Place each object into each beaker to see whether it sinks or floats, and then use this...
Lesson Info Launch GizmoDensity Experiment: Slice and Dice
5 Minute Preview
Drop a chunk of material in a beaker of water and observe whether it sinks or floats. Cut the chunk into smaller pieces of any size, and observe what happens as they are dropped in the...
Lesson Info Launch GizmoDetermining Density via Water Displacement
5 Minute Preview
Drop objects in a beaker that is filled with water, and measure the water that flows over the edge. Using Archimedes' principle, determine the density of objects based on the amount of...
Lesson Info Launch GizmoArchimedes' Principle
5 Minute Preview
Place weights into a boat and see how far the boat sinks into a tank of liquid. The depth of the boat can be measured, as well as the amount of liquid displaced. The dimensions of the boat...
Lesson Info Launch GizmoMineral Identification
5 Minute Preview
Observe and measure the properties of a mineral sample, and then use a key to identify the mineral. Students can observe the color, luster, shape, density, hardness, streak, and reaction to...
Lesson Info Launch GizmoUnit Conversions
5 Minute Preview
Use unit conversion tiles to convert from one unit to another. Tiles can be flipped to cancel units. Convert between metric units or between metric and U.S. customary units. Solve distance,...
Lesson Info Launch GizmoConvection Cells
- New!
5 Minute Preview
Explore the causes of convection by heating liquid and observing the resulting motion. The location and intensity of the heat source (or sources) can be varied, as well as the viscosity of...
Lesson Info Launch GizmoCoastal Winds and Clouds
5 Minute Preview
Observe daily weather conditions in a coastal region. Measure temperatures and wind speeds at any location and use this data to map convection currents that form during the day and night....
Lesson Info Launch GizmoCoastal Winds and Clouds - Metric
5 Minute Preview
Observe daily weather conditions in a coastal region. Measure temperatures and wind speeds at any location and use this data to map convection currents that form during the day and night....
Lesson Info Launch GizmoWaves
5 Minute Preview
Observe and measure transverse, longitudinal, and combined waves on a model of a spring moved by a hand. Adjust the amplitude and frequency of the hand, and the tension and density of the...
Lesson Info Launch GizmoConduction and Convection
5 Minute Preview
Two flasks hold colored water, one yellow and the other blue. Set the starting temperature of each flask, choose a type of material to connect the flasks, and see how quickly the flasks...
Lesson Info Launch GizmoFree-Fall Laboratory
5 Minute Preview
Investigate the motion of an object as it falls to the ground. A variety of objects can be compared, and their motion can be observed in a vacuum, in normal air, and in denser air. The...
Lesson Info Launch GizmoWater Contamination
- Stem Case
There has been an outbreak of legionnaires’ disease in a small town. This disease is caused by legionella bacteria that proliferate in contaminated water supplies. Students take on the role...
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Water Contamination
- Stem Case
Video Preview
There has been an outbreak of legionnaires’ disease in a small town. This disease is caused by legionella bacteria that proliferate in contaminated water supplies. Students take on the role...
Lesson InfoDensity
5 Minute Preview
Measure the mass and volume of a variety of objects, then place them into a beaker of liquid to see if they float or sink. Learn to predict whether objects will float or sink in water based on their mass and volume. Compare how objects float or sink in a variety of liquids, including gasoline, oil, seawater, and corn syrup.
Lesson Info Launch GizmoDensity Laboratory
5 Minute Preview
With a scale to measure mass, a graduated cylinder to measure volume, and a large beaker of liquid to observe flotation, the relationship between mass, volume, density, and flotation can be investigated. The density of the liquid in the beaker can be adjusted, and a variety of objects can be studied during the investigation.
Lesson Info Launch GizmoDensity via Comparison
5 Minute Preview
Using four beakers of liquids with known densities, estimate the density of a variety of objects. Place each object into each beaker to see whether it sinks or floats, and then use this information to compare the densities of the objects.
Lesson Info Launch GizmoDensity Experiment: Slice and Dice
5 Minute Preview
Drop a chunk of material in a beaker of water and observe whether it sinks or floats. Cut the chunk into smaller pieces of any size, and observe what happens as they are dropped in the beaker. The mass and volume of each chunk can be measured to gain a clear understanding of density and buoyancy.
Lesson Info Launch GizmoDetermining Density via Water Displacement
5 Minute Preview
Drop objects in a beaker that is filled with water, and measure the water that flows over the edge. Using Archimedes' principle, determine the density of objects based on the amount of displaced water.
Lesson Info Launch GizmoArchimedes' Principle
5 Minute Preview
Place weights into a boat and see how far the boat sinks into a tank of liquid. The depth of the boat can be measured, as well as the amount of liquid displaced. The dimensions of the boat and the density of the liquid can be adjusted. See how much weight the boat can hold before it sinks to the bottom!
Lesson Info Launch GizmoMineral Identification
5 Minute Preview
Observe and measure the properties of a mineral sample, and then use a key to identify the mineral. Students can observe the color, luster, shape, density, hardness, streak, and reaction to acid for each mineral. There are 26 mineral samples to identify.
Lesson Info Launch GizmoUnit Conversions
5 Minute Preview
Use unit conversion tiles to convert from one unit to another. Tiles can be flipped to cancel units. Convert between metric units or between metric and U.S. customary units. Solve distance, time, speed, mass, volume, and density problems.
Lesson Info Launch GizmoConvection Cells
- New!
5 Minute Preview
Explore the causes of convection by heating liquid and observing the resulting motion. The location and intensity of the heat source (or sources) can be varied, as well as the viscosity of the liquid. Use a probe to measure temperature and density in different areas and observe the motion of molecules in the liquid. Then, explore real-world examples of convection cells in Earth's mantle, oceans, and atmosphere.
Lesson Info Launch GizmoCoastal Winds and Clouds
5 Minute Preview
Observe daily weather conditions in a coastal region. Measure temperatures and wind speeds at any location and use this data to map convection currents that form during the day and night. Explain the origin of land breezes and sea breezes.
Lesson Info Launch GizmoCoastal Winds and Clouds - Metric
5 Minute Preview
Observe daily weather conditions in a coastal region. Measure temperatures and wind speeds at any location and use this data to map convection currents that form during the day and night. Explain the origin of land breezes and sea breezes.
Lesson Info Launch GizmoWaves
5 Minute Preview
Observe and measure transverse, longitudinal, and combined waves on a model of a spring moved by a hand. Adjust the amplitude and frequency of the hand, and the tension and density of the spring. The speed and power of the waves is reported, and the wavelength and amplitude can be measured.
Lesson Info Launch GizmoConduction and Convection
5 Minute Preview
Two flasks hold colored water, one yellow and the other blue. Set the starting temperature of each flask, choose a type of material to connect the flasks, and see how quickly the flasks heat up or cool down. The flasks can be connected with a hollow pipe, allowing the water in the flasks to mix, or a solid chunk that transfers heat but prevents mixing.
Lesson Info Launch GizmoFree-Fall Laboratory
5 Minute Preview
Investigate the motion of an object as it falls to the ground. A variety of objects can be compared, and their motion can be observed in a vacuum, in normal air, and in denser air. The position, velocity, and acceleration are measured over time, and the forces on the object can be displayed. Using the manual settings, the mass, radius, height, and initial velocity of the object can be adjusted, as can the air density and wind.
Lesson Info Launch GizmoWater Contamination
- Stem Case
Video Preview
There has been an outbreak of legionnaires’ disease in a small town. This disease is caused by legionella bacteria that proliferate in contaminated water supplies. Students take on the role of a civil engineer to investigate how the water treatment plant has failed to get rid of all the contaminants in the water and design a new method.
Lesson InfoWater Contamination
- Stem Case
Video Preview
There has been an outbreak of legionnaires’ disease in a small town. This disease is caused by legionella bacteria that proliferate in contaminated water supplies. Students take on the role of a civil engineer to investigate how the water treatment plant has failed to get rid of all the contaminants in the water and design a new method.
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