Why do scientists repeat experiments several times? (7)
What is to make sure their results are accurate
200
20. Which tools could you use to observe the details of a plant leaf?
What is a hand lens and microscope
200
4. The compass has a needle that always points towards magnetic north. How does this invention most likely help people at sea?
What is It keeps sailors from getting lost
200
Which best describes the inquiry process?
What is asking questions and searching for answers?
300
Which is of these statements is a hypothesis?
What is Plant A will grow taller than Plant B
300
The invention of the telescope allowed which of the following to take place?
What is detailed observation of planets
300
5. Airbags are a devices often stored in the dashboard or doors of cars. If the car is in an accident, the airbags pop out and fill with air like a balloon. How does this invention benefit people?
What is Airbags can save the lives of people
300
24. Which of these is an example of a three-dimensional model?
What is a world globe?
400
What do scientists use when they cannot directly experiment on an object?
What is a model
400
Number 18. Use the drawing to answer this question. Which type of information can a student collect using the tool in the drawing?
What is volume of a liquid
400
6. Which statement represents a positive result from the invention of cars?
What is Cars transport people
400
Describe a conclusion in a science experiment
What is a judgment or decision reached by reasoning.
500
What steps would you do in a scientific investigation before an experiment? (13)
What is observe; research; make predictions; formulate questions
500
21. William compared two shells using a balance. Which question was he most likely trying to answer?
What is Which shell has more mass?
500
19. Rebecca knows where her grandmother lives but is not sure how to get to her house. Which of the following would best help her find her way?