Resources - ProFuturo Resources

This project shows one way that sedimentary layers are formed as sediments (mud and silt, sand, pebbles and rocks, other ) settle over time.How do sedimentary layers form?It is an educational content ...

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Equipo Didactalia

Does Text Color Affect Readability

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In this project, students will find out whether the color of text correlates with ease and speed of reading.It is an educational content by education.com.By clicking on the title of this resource, you ...

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Equipo Didactalia

Praise Versus Food

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Determine whether dogs can be trained faster using a food reward or praise.The purpose of this experiment is to see if rewarding wanted behaviors is best achieved through praise or a food reward. Most ...

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Equipo Didactalia

Mapping the Energy Use of My Classroom

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Each day we are surrounded with and use many fantastic technologies. While not always obvious, these technologies require energy to operate. This energy use can add up in terms of monthly power bills ...

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Equipo Didactalia

The Effect of Lubricants on Mechanical Advantage

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In this project you will find out which lubricant has the most effect on the mechanical advantage of a pulle, and which one comes closest to the calculated mechanical advantage. Plus you will investig ...

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Equipo Didactalia

Mouth Bacteria?

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It's time to get to sleep, but you're feeling hungry, so you grab a tasty snack before bedtime. That hit the spot!Eating that late-night apple means you have to go brush your teeth again. Would it hur ...

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Equipo Didactalia

Homemade Electroscope

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Have you ever tried to shut the car door on a warm, dry day and experienced a small shock of electricity? How about rubbing your shoes along a carpeted floor to shock your friends or family members? H ...

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Equipo Didactalia

A Bacterial Investigation!

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Determine which room in your house has the greatest number of bacteriaIt is an educational content by education.com.By clicking on the title of this resource, you will be redirected to the content. If ...

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Equipo Didactalia

Greenhouse Gases

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In this experiment, you will find out how human error can cause faults in any science task. This includes experiments conducted by famous scientists also.It is an educational content by education.com. ...

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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 atmosphere prevents mostultraviolet (UV) radiation given off by the Sun from reaching the ground. The radiation tends to be screened out bystratospheric ozone, which is about 35 km above the Earth's surface. UV radiation has both positive and negative effects. Positive effects of UV radiation include warmth, light, photosynthesis in plants, and vitamin D synthesis in the human body. However, too much exposure to UV damages skin cellsand leads to wrinkled and patchy skin, cataracts, and even skin cancer.Ultraviolet (UV) radiation is often divided into three different ranges:UV-A, UV-B, and UV-C. UV-A radiation constitutes about 90-95% of the UV radiation that reaches the Earth's surface and can penetrate deeply into the skin, leading to premature skin aging and cancer. UV-B radiation does not penetrate the skin as far as UV-A rays, but itcontains much more energy. UV-B is involved in tanning and sunburn, and can cause cellular damage inthe skin and eyes. UV-C radiation has the highest energy ultraviolet wavelength, but most of it is absorbed by the ozone layer in the Earth's upper atmosphere.When the human skin absorbs UV radiation, two effects occur. First, melanin (a substance located in skin cells) absorbs as much UV radiation as possible and is changed to a darker color. The second effect is the destruction of the cells responsible for making new cells, or even worse, a rearrangement or chemical change in the DNA within these cells. If these special cells are destroyed, the nervous system sensors are also damaged resulting in pain and increase in the blood circulation in the area, producing the characteristic red skin of sunburn.<br/><br/>It is an educational content by <a href='http://www.education.com/' target='_blank'>education.com</a>.<br />By clicking on the title of this resource, you will be redirected to the content. If you want to download the project, you just have to join the website, which now is for FREE.

Equipo Didactalia

What Is the Most Effective Sunscreen?

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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 ...

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