Have you ever rubbed an object, say a balloon, in your hair and then held it next to a running faucet to find that the water actually bends towards the balloon? That fun yet simple experiment describes the fundamentals of electric charge!
Electrons have a negative charge. When you rub the balloon on your hair, those electrons collect onto the balloon, thus causing the balloon to hold a negative charge. Negatives attract towards neutral and positive things, so when the negatively charged balloon is held close to the positively charged water, the water attracts towards the balloon, bending like magic!