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- Lesson for Kids 2:51 Electrons Lesson for Kids 3:04 What Are Valence Electrons? - Lesson for Kids 3:05 Molecules Definition: Lesson for Kids 2:45 What Is a Compound? - Lesson for Kids 3:26 4:31 Next Lesson How Compounds and Molecules Are Built From Elements Elements ...
Argon is a gas that's found naturally in the atmosphere, but it has some interesting everyday uses, too. This lesson will teach you about argon and how it's used in different items and to do different jobs. What Is Argon? You're working on a really important homework project that's...
boost their skills and open their eyes to life 's possibilities. Educational outings help bright but disadvantaged students to get better scores in A-level tests. In this globalised age, there is a good case for international travel, and some parents say they can ...
A galaxy is a huge collection of dust, gas and countless stars and their solar systems. There are 3 types of galaxies - Elliptical, Spiral, and Irregular.
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3. What is the woman’s attitude to the man’s suggestion? A. Favorable. B. Tolerant. C. Negative. 4. What can we learn about Tom? A. He’s smart for his age. B. He’s unwilling to study. C. He’s difficult to get along with. ...
things like candles or other light sources that require flame. Some natural disasters, for instance, could cause gas leaks, which may not be apparent. Using an open flame can be dangerous because of its inherent fire risk, even without a gas leak, and also because if a gas leak is ...