Question

1. what is a hypothesis and what makes it \good\? 21. standardization in science ensures that results can be ________ and ______ anywhere in the world. 22. in an experiment, the factor that is measured is called the ______ variable. 23. the si unit for time is the ______. 24. in an experiment, factors that are kept constant are called ________ variables. 25. in the scientific method, why is making careful observations considered the first step?

Explanation:

1. A hypothesis is a proposed explanation for a phenomenon. A good hypothesis is testable, falsifiable, and based on prior knowledge or observation.
2. Standardization in science ensures results can be replicated and verified anywhere in the world.
3. In an experiment, the factor that is measured is the dependent variable.
4. The SI unit for time is the second.
5. In an experiment, factors that are kept constant are called control variables.
6. Making careful observations is the first step in the scientific method because it provides the basis for formulating questions and hypotheses.

Answer:

1. A hypothesis is a proposed explanation; a good one is testable and falsifiable.
2. replicated; verified
3. dependent
4. second
5. control
6. It provides basis for questions and hypotheses.