Electrical engineering, computer engineering, and computer science are related.

But, no, you don't need to know much about science to make phone apps or webpages. Studying a foreign language or in-depth grammar would probably be just as useful for those industries.

That being said, children going into software would benefit from exercising the parts of their brains responsible for patience, tenacity, intellect, technical reasoning, and problem solving.

With the scientific process, one could become an inventor instead of staying a simple laborer.