- Definition and Types of Energy
- Myths And Misconceptions About Energy
- The Relationship Between Energy and Environment
- Climate Change and Carbon Footprint
- Greenhouse Gas Effect
- The Role of Human-Induced Greenhouse Gases and Energy Consumption
- Energy Efficiency and Sustainability
- Renewable Energy Sources and Future Perspectives
- Play and Learn
- Solar Energy Conversions
- Solar Energy Worldwide
- Solar Energy in Partner Countries
- Positive and Negative Impacts
- Technologies for Harnessing Solar Energy
- Solar thermal energy technologies and applications
- Electricity Generation Methods
- Passive Heating and Cooling of Residences with the Sun
- Concentrator solar power (CSP) systems and electricity generation
- Systems and applications that generate electricity directly from solar rays
- Photovoltaic cells and panels
- Domestic PV Systems
- Off-Grid PV Systems
- Hybrid Connected Systems
- Materials Used in PV Cells
- Play and Learn
PLAY AND LEARN Hydrogen Energy
How to Play the Hydrogen Energy Crossword Puzzle
Look at the clues:
Each clue describes a word related to hydrogen energy. The answers include terms like “electrolysis,” “fuel cell,” and “oxygen.”
Find the starting point:
Click the green arrow icons on the grid to see a clue for that word.
Enter the correct word
Type one letter into each box to fill in the word. You have a limited amount of time to finish the game. The timer is at the top of the screen. When the timer runs out, the game ends. Try again to improve your score!