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Hipervinculo Física

Molecules and Light

Turn light source on to explore. Observe what happens in the observation window as you set up different combinations of light source and molecule. Note this simulation is the first to support our zoom ...

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Hipervinculo Física

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 ...

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Hipervinculo Física

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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Hipervinculo Química

What Is the Most Effective Sunscreen?

The sunscreen industry markets its products with SPF (Sun Protection Factor) ratings. Sunscreen products of various SPF ratings will be tested for their UV absorbance and effectiveness.Earth's atmosph ...