Problem: - Fill the tray with water from the faucet - Put the ice cube tray in the freezer - Wait for several hours - The water will freeze and become ice - Remove the ice cube tray from the freezer - Remove the ice cubes from the tray. What might be the first step of the process?

A: Take out an ice cube tray

Problem: - The items are sorted - Trash is removed from everything else - Goes to a landfill - The items go into a baler machine for each kind of material - They come out as bales - The bales are shipped to manufacturers to use to make products. What might be the first step of the process?

A: Items are collected

Problem: - Bread absorbs water from the air - Bread absorbs warmth from the air - Dust particles with mold spores fall on bread - Mold spores start to consume the bread for energy - Mold colonies grow until they are visible. What might be the first step of the process?

A: Bread is exposed to the elements

Problem: - These plants die - The soil gains organic material - The soil becomes more fertile - Larger plants are able to be supported - Trees eventually grow. What might be the first step of the process?

A:
Grass and small plants grow in an area