Futures are a thing where you agree to buy or sell a certain commodity (or currency, or cryptocurrency) not now, but in the future, but at a fixed price. For example:
— "I will buy Bitcoin for 60 thousand in a month, even if it costs 70 or 50 thousand then".
It's all done on the exchange, like betting — whether the price will go up or down.
Leverage is when you borrow money from the exchange to make a larger bet than you have.
For example:
— You have 10 dollars, but you take a 10x leverage — and play as if you have 100 dollars.
If your prediction is correct — you earn 10 times more.
But if you are wrong — you can lose everything instantly.
In short:
• Futures are a game "for the future", you bet whether the price will go up or down.
• Leverage is like a boost, a loan for a bigger bet, but the risks are greater.