'Tall towers' diaporamas de présentation

Comparing Different Home Heating Fuels and Alterative Energy Systems

Comparing Different Home Heating Fuels and Alterative Energy Systems. Saving Home Energy Part 3. Current System Servicing, cleaning and tuning up your current heating system before you consider a supplemental heating system. Supplemental Heating

477 views • 39 slides

The European Research Infrastructure ICOS (Integrated Carbon Observation System)

364 views • 18 slides

Vocabulary

214 views • 11 slides

Tools used to construct ancient houses

Tools used to construct ancient houses. The ancient tools. They used stone tools in the olden days . This is how they built their tall towers . They are building one of the fanciest buildings. These are the carpenter's tools in the olden days. These look like some modern day tools.

229 views • 7 slides

All About Wind

209 views • 7 slides

How does lightning make electricity?

How does lightning make electricity?. Lightning is an electric current within a thunder cloud way up in the sky, many small bits of ice frozen raindrops bump into each other as they move around the air. All of those collisions create an electric charge. Where does electricity go?.

184 views • 4 slides