Question 1 of 5 Share Facebook Twitter LinkedIn WhatsApp Email Copy Link A team of scientists uses the Hubble Space Telescope to search for evidence of planets orbiting distant stars. Which kind of investigation are they carrying out? A. Laboratory experiment B. Controlled experiment C. Observational study D. Constructing a model Submit Answer
Question 2 of 5 Share Facebook Twitter LinkedIn WhatsApp Email Copy Link Which question would be appropriate for an observational study? A. Which type of glass best resists scratching? B. Which type of rock dissolves fastest when exposed to acid rain? C. What is the brightest star that can be seen from Earth? D. How does the mass of a toy car affect how fast it rolls down a track? Submit Answer
Question 3 of 5 Share Facebook Twitter LinkedIn WhatsApp Email Copy Link A scientist wants to determine how the speed of flowing water affects the size of sediment particles it can carry. The scientist places a mix of sediment particles in the bottom of a trough and runs water through the trough. The scientist varies the speed of the water and measures the sizes of the particles that the water carries away. Which type of investigation is the scientist using? A. Controlled experiment B. Field study C. Observational study D. Computational model Submit Answer
Question 4 of 5 Share Facebook Twitter LinkedIn WhatsApp Email Copy Link Which question would be appropriate for an observational study? A. Which type of metal conducts electricity best? B. Does adding salt to water affect how fast the water evaporates? C. What types of rocks are found at a convergent boundary? D. How does the mass of an object affect the strength of its gravitational field? Submit Answer
Question 5 of 5 Share Facebook Twitter LinkedIn WhatsApp Email Copy Link Numerous experiments have confirmed that if the distance between a light source and an observer is doubled, the intensity of the light as viewed by the observer decreases by a factor of four. Which type of scientific statement is this? A. Inference B. Hypothesis C. Law D. Theory Submit Answer