Question

which statement is an observation rather than an inference? *
○ the dog is happy because its tail is wagging
○ the temperature outside is 75 degrees fahrenheit
○ someone must have broken the window
○ the plant died from lack of water

in a science experiment, a student notices bubbles forming in a test and concludes a chemical reaction is occurring. the formation of bu is:
○ an inference
○ a hypothesis
○ an observation
○ a scientific theory

Explanation:

First Question:

• An observation is a direct, factual statement based on what is seen/measured. An inference is a conclusion drawn from observations.
• "The dog is happy because its tail is wagging": Infers happiness from tail wagging (inference).
• "The temperature outside is 75 degrees Fahrenheit": Direct measurement (observation).
• "Someone must have broken the window": Infers who broke the window (inference).
• "The plant died from lack of water": Infers cause of death (inference).

• Observation: What is directly seen/noticed (bubbles forming).
• Inference: Conclusion from observation (chemical reaction). Hypothesis: A prediction. Scientific theory: Well - supported explanation. The formation of bubbles is what the student noticed (observation).

Answer:

B. The temperature outside is 75 degrees Fahrenheit

Second Question: