Lemonade is a drink made from lemon juice, water and sugar. Lemonade made commercially at a bottling plant is often carbonated, which means it is full of fizzy little bubbles.
Home-made lemonade tastes nicest if you dissolve the sugar in water by making it into a syrup first. Make sugar syrup by heating 1 cup of sugar and 1 cup of water in a saucepan until all the sugar is dissolved. Add this to the juice of about 5 lemons (1 cup of juice) and then add 3 or 4 cups of cold water. Put the mix in the fridge until it is cold, and then serve with ice and lemon slices.
A parade, also called a marchpast, procession or pageant is usually part of some kind of celebration. Many people walk some distance in a line. There is usually lots of music, and the people in the parade are dressed up in fancy costumes. Sometimes there are also large, decorated vehicles called floats in a parade.