Science Lesson One Test Review Pegasus

What is the first step in the scientific method as shown in the diagram?

• Hypothesis

• Observation

• Experiment

• Conclusion

Answer explanation

The first step in the scientific method is 'Observation'. This involves gathering data and noticing phenomena, which leads to questions and hypotheses. Without observation, the scientific process cannot begin.

Which step comes after 'Hypothesis' in the scientific method according to the diagram?

• Observation

• Conclusion

• Experiment

• Analysis

Answer explanation

In the scientific method, after formulating a 'Hypothesis', the next step is to conduct an 'Experiment' to test the hypothesis. This step is crucial for gathering data and validating the hypothesis.

What is the process of using one or more of your senses to gather information called?

• Measuring

• Observing

• Calculating

• Predicting

Answer explanation

The process of using one or more senses to gather information is called observing. This involves noticing details through sight, sound, touch, taste, or smell, making it distinct from measuring, calculating, or predicting.

Tags

NGSS.MS-LS1-8

Which of the following is an example of a quantitative observation?

• The flower is red.

• The surface is rough.

• The temperature is 30°C.

• The cake tastes sweet.

Answer explanation

A quantitative observation involves measurable data. 'The temperature is 30°C' provides a specific numerical value, making it quantitative. The other options describe qualities or characteristics, which are qualitative.

What type of observation involves descriptions that cannot be expressed in numbers?

• Quantitative

• Qualitative

• Numerical

• Statistical

Answer explanation

Qualitative observation involves descriptions that are subjective and cannot be quantified. It focuses on qualities and characteristics, unlike quantitative observation, which deals with numerical data.

Which sense is NOT typically used in the process of observing?

• Sight

• Hearing

• Touch

• Telepathy

Answer explanation

Telepathy is not a conventional sense used for observation, as it refers to the ability to communicate thoughts directly, rather than through physical senses like sight, hearing, or touch.

Tags

NGSS.MS-LS1-8

What is inferring based on?

• Complete guesses

• What you already know

• Random thoughts

• Imaginary scenarios

Answer explanation

Inferring is based on what you already know, as it involves drawing conclusions from existing knowledge and experiences rather than making random guesses or imagining scenarios.

What can you infer if you see someone smile when they get their exam back?

• They are upset

• They are confused

• They are happy with their result

• They are tired

Answer explanation

A smile typically indicates positive emotions. Therefore, if someone smiles when receiving their exam back, it suggests they are happy with their result, making 'They are happy with their result' the correct inference.

If it is a hot day and your dog tries to find shade, what can you infer?

• The dog is hungry

• The dog is cold

• The dog is tired

• The dog is trying to cool down

Answer explanation

On a hot day, dogs seek shade to avoid overheating. This behavior indicates that the dog is trying to cool down, rather than being hungry, cold, or tired.

Are inferences always correct?

• Yes, always

• No, never

• Sometimes

• Only on weekends

Answer explanation

Inferences are not always correct because they depend on the context and available information. Therefore, the correct answer is 'Sometimes', as inferences can be accurate in some situations and inaccurate in others.