All stories

Can You Get 4 out of 5 Science Questions Right?

· Science · Applied Science

Five questions. Can you get four right? Choose an answer for each question, then view the explanations below.

1. Which planet rotates slower, relative to distant stars, than it orbits the Sun?
2. At ordinary atmospheric pressure, which pure metal is solid at 20°C but liquid at 35°C?
3. Which tissue mainly carries water and dissolved minerals up a plant’s stem?
4. Which liquid Earth layer prevents seismic S-waves from passing through it?
5. Monochromatic visible light enters glass from air at 30° to the normal. Which property stays unchanged?
View answers and explanations
  1. B. Venus — Venus rotates in approximately 243 Earth days but orbits in 225 days. [1]
  2. D. Gallium — Gallium melts at approximately 29.76°C, between the two stated temperatures. [2] [3]
  3. A. Xylem — Xylem conducts water and dissolved minerals; phloem carries food such as sugars. [4]
  4. C. Outer core — Earth’s outer core is entirely liquid and stops seismic S-waves. [5] [6]
  5. B. Frequency — Frequency stays constant while light slows, its wavelength decreases, and its direction changes. [7] [8]

Sources

More topics Back to home