Imagine a big shiny space toy up in the sky that takes pictures and records information about the Earth below us. This space toy is called a data collection satellite.
Just like how you use your camera to take pictures of your family and friends, a data collection satellite takes pictures of the Earth below us. But instead of just taking regular pictures, it takes special pictures that show us things like what the weather is like, how healthy the plants are, or where the buildings and roads are.
The satellite has a lot of special instruments and sensors inside that help it do all these things. These instruments can measure things like temperature, wind speed, and even the color of the Earth's surface. It can also watch certain parts of the Earth for a long time, like watching how the weather changes in a certain area or how a forest grows over a year.
The data collection satellite doesn't do all its work alone. It sends all the pictures and information it collects back down to Earth using special antennas. Scientists then use this information to learn more about our planet and how it's changing over time.
So in short, a data collection satellite is like a space camera that takes special pictures of the Earth to help scientists learn more about our planet.