[Q]: - The sediments become glued together - The glued together parts become hard like cement - The sediment becomes a big rock - The rocks erode slowly - The rocks come apart - The rocks become smaller rocks - The rocks continue to erode into smaller rocks - The process starts again. What might be the first step of the process?
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[A]: Minerals fill spaces between bits of sediment

[Q]: - The cold water forms ice crystals - The ice crystals grow by absorbing surrounding water droplets - Form snowflakes - The snowflakes fall to the ground. What might be the first step of the process?
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[A]: Water in the clouds becomes very cold

[Q]: - The sound travels in waves, as sound does - The sound "bounces" off of a nearby object - The sound wave returns to the bat - The bat hears the echoed sound - Folds in the bat's ear and adaptations in the bat's brain enable it to determine the size, shape, and position of the other object via the properties of the returned sound waves - Other animals use echolocation in generally similar ways - What might be the first step of the process?
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[A]: Bats and other animals produce a high-pitched tone

[Q]: - The egg hatches into a baby bird - Baby bird eats - Grows into an adult bird - The bird finds a mate - The pair build a nest - The birds lay eggs. What might be the first step of the process?
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[A]:
A bird lays an egg