Open Science is more than making your papers or research data open access. According to the UNESCO Recommendation on Open Science adopted in Nov 2021, the idea of Open Science is:
The Recommendation also describes key pillars for Open Science:
In this guide, we highlight and promote a number of tools that support Open Science and serve the needs of various tasks during a research project life cycle.
This explainer video gives you an overview on the what, how and why of Open Science (source from YouTube):
You may find more information from UNESCO Open Science Toolkit.
Click on any of the six steps on the Research Life Cycle infographic below to explore corresponding tools recommended for you that promote open science research.