Toda a comunidade

search
1537
711 - 720

Were humans able to boil water before we discovered how to make metal cookware? Absolutely. We’ve been boiling water in large, cup-shaped leaves for thousands of years! We’re able to pull this off bec ...

Substances can be grouped by their ability to bend light. This grouping is called theIndex of Refraction.Based on the amount of light refracted, you candevelop a qualitative "index of refraction" tabl ...

To investigate the ability of different whitening toothpastes to whiten teeth.Research QuestionsIt is an educational content by education.com.By clicking on the title of this resource, you will be red ...

In this experiment,determine if this crystal can absorbother liquids byadding them to orange juice, vegetable oil, milk, rubbing alcohol, vinegar, and club soda.A hydrogel crystal (sometimes called a ...

Ocean waves erode the coastline. The sand they remove is shifted to another location. This paradoxical effect can strip beaches in one location and create them in another. We'll observe this effect by ...

Investigate whether breakfast cereals contain iron.It is an educational content by education.com.By clicking on the title of this resource, you will be redirected to the content. If you want to downlo ...

If you wake early in the morning, you may notice that the ground is wet with dew. This dew doesn’t come from rain, but seems to magically appear on surfaces. During the night, the temperature of the a ...

Energy is all about action! Thermal energy is transferred in many ways. The thermal energy of a substance can be determined by adding up all the kinetic and potential energy of its molecules. Convecti ...

Rocks are ever changing.They can be smoothed by water, broken off by wind, and cracked by ice.If you found a rock in your backyard then traveled back in time 1,000 years, that rock would look totally ...

Have you ever picked up a pretty rock and wondered if it contained precious gems? Have you ever thought that your sharp eyes could make you a millionaire? How can you tell for sure that you found a go ...