pyramidal, if you have a molecule kit, i would strongly recommend watching a video of someone using a kit explaining the different shapes and following along. It helps a lot!
invisable
you probably dont want to put that...
Models help scientists to make predictions about complex systems. Some models are something that you can see or touch. ... Climate models can predict how climate will change as certain gases are added to the atmosphere. To test how good a model is, scientists might start a test run at a time in the past.
Answer:
Sugar dissolution in water is a physical change and not a chemical change because, when sugar is mixed in water, the water molecules break down the sugar molecules so, as a result sugar changes it's shape and gets dissolved in the water attaching the chain bonding between them.
Explanation:
Someone who wants to learn a skilled trade on the job should consider enrolling in a class for skills. In the present skill trade jobs are popular and many schools are offering the training of these skills like building, repairing and maintaining.
