Some insects go through stages in their life, and the early stage is the larval stage. Larvae of creatures like butterflies tend to be crawling things with no wings that spend all their time eating and growing. When they are big enough, they change into flying insects.
Many different creatures have a larval stage that is so different to the adult form that you would never know they were the same creature unless you saw it change.
Lasagna is an Italian dish made by layering wide, flat sheets of pasta with other ingredients. The most popular kind of lasagna has layers of meat sauce and cheese sauce between the pasta. There are many different variations.
A laser is a light source that either emits or converts emitted light to coherent light. This means that the light from the laser is all going in the one direction, with the light waves in synch.
Lasers have many, many uses in science and medicine. Less powerful lasers are also commonly used in laser pointers for pointing out words on a screen or whiteboard, and used to make light shows in nightclubs, as seen in the picture.
