How Scientists Work

Which of the following is an observation of the picture?

• The person is wearing a T-shirt
• It is a sunny day
• The person is going to a birthday party
• The gift is a DVD player

What is an observation for this picture?

• The man is scared
• The man is going to get eaten
• There is a man in a kayak
• The man is paddling fast

Tags

NGSS.4-LS1-1

Using one or more of your senses to gather information refers to

• classifying

• observing

• inferring

• predicting

Tags

NGSS.4-LS1-2

What is the first step in the scientific method?

• making a hypothesis

• researching

• asking a question

• collecting data

What is an explanation you make putting together what you already knew with what you observed?

• inference

• observation

• hypothesis

• prediction

How do you test a hypothesis?

• do the experiment 
• write the data
• write a conclusion 
• guess

Billy said that most people in his class like pizza. Which would be the best evidence to support his statement?

• Data showing his classmates like pizza.

• A book about pizza.

• A Pizza Hut commercial.

What is an investigation in which all conditions are controlled that is used to test a hypothesis?

• question

• experiment

• variable

• evidence

What is any condition in an experiment that can be changed?

• control

• question

• variable

• conclusion

Why do scientists communicate their results?

• to brag about their investigation

• to learn from each other

• to make sure they got the correct results

• to decide what investigation to do next