Karen is excited about her Science Fair project on using different types of fertilizers on the herb basil using aquaponics. This style of growing plants uses water instead of soil with added fertilizers to supply the plants' need for food. She gathers her materials and decides what hypothesis to test. What important step has she overlooked?

OBSERVATION

Explanation:

In science, before an hypothesis is made, a concept must have been observed. Hence, for Karen to make an hypothesis about her project, she must have a comprehensive observation about how this plant is grown somewhere else leading her to question different concepts about this growth mechanism. This question or observation will lead her to her own experimental design and the type of hypothesis she is to make.

NOTE: There are several concepts she can decide to question aside from the growth, she can decide to question colour, texture, food produced among others.

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl