Daniel

Oil, natural gas and coal are examples of …

• Renewable resources

• Fossil fuels

• Biofuels

• Geothermal

Which of the following is an example of genetic engineering?

• Inserting a gene into plants that makes them resistant to insects

• Finding the sequences of bases in plant DNA

• Growing a whole plant from a single cell

• Attaching the root of one type of plant to the stem of another type of plant

A scientist is conducting a study to determine how well a new medication treats ear infections. The scientist tells the participants to put 10 drops in their infected ear each day. After two weeks, all participants' ear infections had healed. Which of the following changes to the design of this study would most improve the ability to test if the new medication effectively treats ear infections?

• Have participants use ear drops for only one week

• Create a second group of participants with ear infections who do not use any ear drops

• participants with ear infections who use 15 drops a day

• Have participants put ear drops in both their infected ear and healthy ear

What is the main cause of seasons on the Earth?

• Changes in the amount of energy coming from the sun

• The distance between the Earth and the sun

• The speed that the Earth rotates around the sun

• The tilt of the Earth's axis in relation to the sun

Many diseases have an incubation period. Which of the following best describes what an incubation period is?

• The period during which someone has an infection, but is not showing symptoms

• The recovery period after being sick

• The period during which someone builds up immunity to a disease

• The effect of a disease on babies

Now that Pluto is no longer included, how many planets are there in the Solar System?

• 7

• 9

• 12

• 8

Phobos and Deimos are moons of what planet?

• Neptune

• Venus

• Mars

• Jupiter

What is the _________ planet in the night sky?

What is the third planet from the Sun?

• Mercury

• Pluto

• Earth

• Uranus

A low voice has...

• Short wavelengths

• No wavelengths

• Sandwich

• Long wavelengths