Science Quiz

In an experiment, which of the following variables is manipulated?

• Independent Variable

• Dependent Variable

• Controlled Variable

• Experimental Variable

What type of organisms can produce their own food?

• autotrophs

• carnivores

• decomposers

• detritivores

An object is traveling with a constant speed of 20 m/s. After 2 s, its speed is _____.

• 10 m/s

• 20 m/s

• 30 m/s

• 40 m/s

It is the layer of the atmosphere where airplanes fly to avoid turbulence.

• mesosphere

• thermosphere

• stratosphere

• troposphere

Subatomic particles have different charges. Which particle has a positive charge?

• Proton

• Electron

• Neutron

• Atom

Which statement is correct?

• An unsaturated solution is a very unstable solution.

• A supersaturated solution is a concentrated solution.

• A saturated is more dilute than an unsaturated solution.

• A saturated solution is more concentrated than a supersaturated solution.

Which of the following is the correct food chain?

• Grass grasshopper snake frog hawk

• Grass grasshopper maya bird hawk

• Grass grasshopper frog snake hawk

• Grass mouse snake frog hawk

What stage of mitosis is characterized by alignment of chromosomes?

• anaphase

• metaphase

• prophase

• telophase

A car travels 100 m in 5 seconds. What is its average speed in m/s?

• 20 m/s

• 36 m/s

• 40 m/s

• 72 m/s

In what seasons do both hemispheres of Earth receive an equal amount of sunlight?

• Fall equinox and spring equinox

• summer solstice and fall equinox

• spring equinox and winter solstice

• winter solstice and summer solstice