What is the missing first step of the following process: - The water tank over the boiler is heated - Creates steam - The steam is funneled to the piston - Piston uses the steam as energy - The piston causes the crankshaft to move.
Ans: Coal is heated in the boiler

What is the missing first step of the following process: - Water levels of a river or lake get higher - Water builds up on the ground - Water covers streets - Water gets deep in some places - Water goes into houses and other buildings - The rain stops or the dam is repaired - Water flows into streams - The rest of the floodwater evaporates.
Ans: There is a lot of rain or a dam breaks

What is the missing first step of the following process: - The shaft of the turbine spins - Shaft is connected to a generator - The generator uses the spins of the shaft to rotate a rotor - The rotor spins inside the core, which has magnets inside surrounded by wire loops inside - The spinning of the rotor in the core generates electricity -
Ans: Wind passes the turbines and moves the blades

What is the missing first step of the following process: - Then while gathering of their food, they make wax, which is the building block of their bee hive - Bees make food called honey - They use a sticky, glue-like substance called propolis as a binding to hold their hives together - Bees produce all of the building blocks to build their hive in their own body -
Ans: Bees go out during the day and gather food