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Worksheetsround 2
Total questions: 10
Worksheet time: 2mins
Oil, natural gas, and coal are examples of …
Renewable resources
Biofuels
Geothermal resources
Fossil fuels
Which of the following is an example of genetic engineering?
Inserting a gene into plants that makes them resistant to insects
Growing a whole plant from a single cell.
Attaching the root of one type of plant to the stem of another type of plant
Finding the sequences of bases in plant DNA
What is the main cause of seasons on the Earth?
The speed that the Earth rotates around the sun
The distance between the Earth and the sun
The tilt of the Earth's axis in relation to the sun
Changes in the amount of energy coming from the sun
The time a computer takes to start has increased dramatically. One possible explanation for this is that the computer is running out of memory. This explanation is scientific …
Observation
Hypothesis
Experiment
Conclusion
Many diseases have an incubation period. Which of the following best describes what an incubation period is?
The effect of a disease on babies
The period during which someone builds up immunity to a disease
The recovery period after being sick
The period during which someone has an infection, but is not showing symptoms
When large areas of forest are removed so the land can be converted for other uses, such as farming, which of the following occurs?
Decreased carbon dioxide
Greater oxygen production
Colder temperature
Increased erosion
An antacid relieves an overly acidic stomach because the main components of antacids are
Neutral
Acids
Bases
Isotopes
Which of these is a major concern about the overuse of antibiotics?
It can lead to antibiotic-resistant bacteria
There will be an antibiotic shortage
Antibiotics can cause secondary infections
Antibiotics will get into the water system
A car travels at a constant speed of 40 miles per hour. How far does the car travel in 45 minutes?
25 miles
30 miles
35 miles
40 miles
Polio invented by which scientist
Hovkut
John-e-Salak
Maculan
Funk
