Question

what is the set of required materials and steps to complete the experiment? choose this is a required question what is a way to represent data change over time? choose what is a scientific question that can be answered through experimentation? choose what is an observation that is measured, counted, or calculated? choose

Explanation:

1. For the first question, the materials and steps are key components of an experiment - materials are what is used, and steps are the procedure.
2. To represent data change over time, a common way is through a line - graph where the x - axis is time and the y - axis is the variable of interest.
3. A scientific question for experimentation should be testable, such as "Does the amount of sunlight affect plant growth?".
4. An observation that is measured, counted, or calculated is a quantitative observation.

Answer:

1. Materials are items used in the experiment, steps are the procedural sequence.
2. Line - graph.
3. For example, "Does the amount of sunlight affect plant growth?".
4. Quantitative observation.