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Recursos > energy

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What’s in a food? - Project for kids (CREST Awards)

In this project you will test a range of foods to find out if they contain protein, reducing sugar, fat or starch. You will then do an experiment to work out how much energy is in each of the foods. F ...

Chemical Energy in a Bottle

hemical energy is a form of potential energy stored in matter when atoms join together to form chemical compounds. It can be released when matter undergoes a chemical change. The food that you eat pro ...

How to Keep Your Light Sticks Lit Up Longer

On a fall night, you’ve probably seen fireflies glowing in the bushes. Fireflies use chemiluminescence, a very efficient process that converts energy to light. Light sticks use a similar process. Do y ...

Mentos and Diet Coke Experiment

Carbon dioxide is the chemical compound that consists of two oxygen atoms bonded to a carbon atom. Carbon dioxide creates the bubbles in soda. The goal of this project is to explore the eruption of ca ...

Candle Lit Energy

During the burning process, potential energy in a candle is converted to heat energy. This science project measures the amount of heat energy released by a burning candle.It is an educational content ...

Salt Water Energy

This science project will explore the components of a battery, specifically how the conductivity of the solution in the battery affects how much electricity it generates.:It is an educational content ...

Rate of Diffusion

Ever notice that when you pour a darker liquid into clear water the overall color changes into a shade between both? Diffusion is the passive process of particles spreading from areas of high concentr ...

Evaporation of Liquids (chem4kids.com)

Sometimes a liquid can be sitting in one place (maybe a puddle) and its molecules will become a gas. That's the process called evaporation. It can happen when liquids are cold or when they are war ...

Scope of Physic? At grade

Scope of physics and how physics helps us understand the universe.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).

Scope of Physical Scienc? At grade

Definition of physical science and how we depend on physical science.

It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).

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