Bell Ringer

What is the primary function of a bell ringer activity in a science classroom?

• To review previous lessons

• To introduce new topics

• To assess student understanding

• To engage students at the start of class

Which of the following is an example of a bell ringer activity in a science class?

• Solving a math problem

• Writing a short essay

• Analyzing a scientific graph

• Reading a historical text

Tags

NGSS.MS-PS3-1

In a bell ringer activity, students are asked to predict the outcome of an experiment. What scientific skill does this develop?

• Observation

• Hypothesis formation

• Data analysis

• Conclusion drawing

• 3

• 4

• 5

• 6

Tags

NGSS.MS-PS1-5

During a bell ringer, students are asked to identify the independent variable in an experiment. Which of the following best describes an independent variable?

• A variable that is measured

• A variable that is changed

• A variable that is kept constant

• A variable that is dependent

Tags

NGSS.MS-PS2-5

A bell ringer activity involves interpreting a graph showing the growth of bacteria over time. What type of graph is most suitable for this data?

• Bar graph

• Line graph

• Pie chart

• Histogram

Tags

NGSS.MS-LS2-1

In a bell ringer, students are asked to classify a list of materials as conductors or insulators. Which of the following is a conductor?

• Rubber

• Glass

• Copper

• Wood

A bell ringer question involves calculating the density of a substance. If a substance has a mass of 10g and a volume of 2cm³, what is its density?

• 2 g/cm³

• 5 g/cm³

• 10 g/cm³

• 20 g/cm³

During a bell ringer, students are asked to explain the process of photosynthesis. Which of the following is a product of photosynthesis?

• Oxygen

• Carbon dioxide

• Water

• Glucose

Tags

NGSS.MS-LS1-6

A bell ringer asks students to identify the phase of matter with a definite shape and volume. Which phase is it?

• Solid

• Liquid

• Gas

• Plasma