Holguin Q2 Midterm Practice Assessment

Front

What happens to the brightness and duration of glow sticks in different temperatures?

Back

The glow stick placed in boiling water will be brightest but will last less time than the other glow sticks.

Front

What is the correct order of states of matter in beakers labeled 1, 2, and 3?

Back

1 = liquid, 2 = solid, 3 = gas.

Front

What is the importance of repeated trials in an experiment?

Back

Repeated trials help ensure the reliability of the results and allow for replication by others.

Front

What is water commonly referred to as in chemistry?

Back

Water is known as the universal solvent.

Front

What evidence can contradict a hypothesis in an experiment?

Back

The stain is removed when a different type of laundry detergent is used.

Front

What is a hypothesis?

Back

A hypothesis is a testable statement or prediction about the relationship between variables.

Front

What is the scientific method?

Back

The scientific method is a systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.

Front

What is the difference between a solute and a solvent?

Back

A solute is a substance that is dissolved in a solution, while a solvent is the substance that dissolves the solute.

Front

What is the role of control variables in an experiment?

Back

Control variables are kept constant to ensure that the results are due to the independent variable.

Front

What is the significance of conducting experiments with replication?

Back

Replication increases the validity of the results by confirming that findings are consistent across different trials.