Round five's answers. The heart has two coronary arteries, geothermal energy comes from within the Earth, and helium is He.
The femur is the longest bone, plants make food by photosynthesis, and there are eight planets in the solar system.
- Two coronary arteries (2)
- Inside our Earth
- True
- He
- Femur
- Photosynthesis
- Eight planets in our solar system (8)
- The nucleus
- Electrical
- One
- A large group of wind turbines
- Pitch
- Photovoltaic cell
- Neil Armstrong
- Krypton