TCAP Science Concepts 3

Question 1

Which layer of Earth's atmosphere contains the ozone layer that protects life from harmful UV radiation?

Accepted Answer

Stratosphere

Answer

Troposphere

Answer

Mesosphere

Answer

Thermosphere

Question 2

A circuit has a battery, a switch, and two light bulbs connected in series. If one bulb burns out, what happens to the other bulb?

Accepted Answer

It also goes out because the circuit is broken

Answer

It burns brighter

Answer

It stays on because circuits share electricity

Answer

It dims slightly but stays on

Question 3

Which process do plants use to convert carbon dioxide and water into glucose using sunlight?

Accepted Answer

Photosynthesis

Answer

Cellular respiration

Answer

Fermentation

Answer

Transpiration

Question 4

A wave with a higher frequency will have which of the following compared to a wave with a lower frequency (at the same wave speed)?

Accepted Answer

Shorter wavelength

Answer

Longer wavelength

Answer

Greater amplitude

Answer

Slower speed

Question 5

Which type of eclipse occurs when the Moon passes between Earth and the Sun, casting a shadow on Earth?

Accepted Answer

Solar eclipse

Answer

Lunar eclipse

Answer

Penumbral eclipse

Answer

Partial lunar eclipse

Question 6

Which of the following is an example of a physical property of matter?

Accepted Answer

Density

Answer

Flammability

Answer

Reactivity with acid

Answer

Ability to rust

Question 7

What is the main role of decomposers in an ecosystem?

Accepted Answer

Breaking down dead organisms and returning nutrients to the soil

Answer

Converting sunlight to food

Answer

Consuming live plants for energy

Answer

Producing oxygen through respiration