Imagine you are playing a game with your friends and you want to know who likes ice cream the most. You could go around and ask each of your friends individually, but that would take a long time. Instead, you could use a survey to collect data from everyone at the same time.
A survey is like a big question list that people can answer. Each question asks about something different, like "What is your favorite ice cream flavor?" or "How often do you eat ice cream?" Once everyone has finished answering the questions, you can collect all the answers and look at the data.
Collecting survey data is like gathering a lot of answers to a lot of questions at once. People can fill out the survey in many ways, like online, on paper, or by talking to someone on the phone. Once all the answers are collected, you can study them and learn new things about the people you surveyed.
For example, if you did a survey on ice cream and found out that 80% of your friends like chocolate ice cream, you could conclude that chocolate is the most popular flavor among your group. Survey data collection is a tool that helps us learn about groups of people by asking them questions and collecting their answers to study later on.