Question

respond to the following based on your reading. question 11 observation is made using one or more of the five senses. check my answer question 12 an independent variable is a variable thats changed in an experiment. check my answer question 13 an explanation based on an observation is a/an

Explanation:

Question 11: In scientific observation, using the five - senses (sight, hearing, touch, taste, smell) is a fundamental way. This is a qualitative observation.
Question 12: By definition, an independent variable is the variable that is deliberately changed or manipulated in an experiment to observe its effect on the dependent variable.
Question 13: An explanation based on an observation is a hypothesis. A hypothesis is a proposed explanation made on the basis of limited evidence as a starting point for further investigation.

Answer:

Question 11: Qualitative
Question 12: Deliberately changed or manipulated
Question 13: Hypothesis