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Didactalia: material educativo > 12-14 anos/1º-2º ESO

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UV Radiation Protection

This project will look at how fabrics block UV radiation by examining how fabric thickness, tightness of weave, weight, type of fiber, and color influence the transmission of UV radiation. The goal is ...

Washing Detergent & Hydrophobic Soil

This project evaluates the ability of a biodegradeable dish detergent to increase the penetration of water in hydrophobic soils.The goal is to have the student formulate and test a hypothesis about th ...

Heat Traveling Through Solids

All are made up of atoms or molecules that are in constant motion. As a material is heated, the atomic or molecular vibrations become larger and the temperature increases. When sufficient heat is abs ...

Do High-Wattage Microwaves Cook Faster?

Today, nearly all households own a microwave. They provide ease in cooking as speeds are usually really fast and it is convenient to just pop food inside such a small appliance and have it come out re ...

The Effect of Humidity and Temperature on Percussive Pitch

The purpose of this project is to quantify the effect of weather- in this case temperature and humidity- on musical instruments. All musicians know that the environment affects the tone of the instrum ...

Salinity & Water Density

Cold water is denser than warm water. Water with a high salt concentration (salinity) is denser than water that has a lower salt concentration. Warmwater rises above densercolder water, and bodies of ...

Which Wheel Works Best? An Exploration Into Skateboarding

Determine if the material and the tensile strength of different types of skateboard wheels significantly affects the friction co-efficient- and therefore the velocity- of a skateboarder.It is an educa ...

Does Cutting Foods Into Pieces Make It Cook Faster Or Should You Leave It Uncut?

In this experiment students will find out whether cutting up meats will make it cook faster than just cooking it whole.It is an educational content by education.com.By clicking on the title of this re ...

UV Radiation & Laundry Detergents

The project is about measuring the effectiveness of a detergent containing a UV-absorbing compound in blocking UV-A radiation.The goal is to have the student conduct a controlled experiment to test cl ...

What Blocks UVA Rays?

The project compares the ability of selected to block UV-A radiation. The goal is to have the student formulate, test and revise a hypothesis about the ability of optically transparent to block UV-A ...

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