The lemon is the fruit of the lemon tree. Lemon trees are thorny and can grow to 10 metres high. Lemons are yellow and very sour because they contain a lot of citric acid. When you make lemonade from lemon juice you need to add a lot of sugar or it will not taste good. You can make marmalade from lemons.
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.
Lentils are a pulse, which means they grow seeds in pods like beans and peas but they are harvested when the seeds are dry. Beans and peas that are not picked fresh but are left to dry out first are also called pulses.
Lentils are eaten all over the world, and are good food for people who do not eat meat. They can be made into soup, stews and curries. They cannot be eaten raw, and need to be cooked before you can eat them. If you soak lentils overnight before you cook them, they are easier to digest.
Limes are a citrus fruit like oranges and lemons. They are most similar to lemons but are smaller, sourer and greener. Like lemons, limes are not good to eat on their own and are used to flavor drinks and foods. A lot of Asian cooking uses limes as flavoring.