Lightning in the Sky: Advanced English Class
Is lightning a line of electricity that shoots through the sky? Not really. Learn how lightning works in this Level 5 listening lesson.
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Is lightning a line of electricity that shoots through the sky? Not really. Learn how lightning works in this Level 5 listening lesson.
Around the world, 57 ballpoint pens are purchased every second. How did this simple pen become so popular? Get the answer in this Level 5 listening lesson.
Galileo was a scientist who wanted to understand the world with evidence and proof. Learn about his work and ideas in this Level 5 listening lesson.
Potato chips are a popular snack. This Level 5 listening lesson gives you the short history of this tasty treat.
Salt is the only rock people eat. Surprising, it’s played an important role in world history. Learn more about this tasty mineral in this Level 5 listening exercise.