TCAP Science Concepts 2

Question 1

Which organelle is responsible for producing energy (ATP) in a cell through cellular respiration?

Accepted Answer

Mitochondria

Answer

Ribosome

Answer

Chloroplast

Answer

Vacuole

Question 2

A student observes that iron rusts when left outside in the rain. This is an example of what type of change?

Accepted Answer

Chemical change

Answer

Physical change

Answer

Nuclear change

Answer

Mechanical change

Question 3

Which type of rock forms when magma cools and solidifies?

Accepted Answer

Igneous

Answer

Sedimentary

Answer

Metamorphic

Answer

Organic

Question 4

What happens to the particles in a liquid when it is heated to its boiling point?

Accepted Answer

They gain enough energy to escape into the gas phase

Answer

They slow down and pack closer together

Answer

They lose all energy and stop moving

Answer

They become solids immediately

Question 5

In a food web, which organisms are always at the base (first trophic level)?

Accepted Answer

Producers (plants)

Answer

Carnivores

Answer

Decomposers

Answer

Omnivores

Question 6

The force of gravity between two objects increases when which of the following occurs?

Accepted Answer

The mass of one or both objects increases

Answer

The distance between them increases

Answer

The objects move faster

Answer

The temperature rises

Question 7

Which of the following best describes the process of condensation?

Accepted Answer

Water vapor cools and turns into liquid water

Answer

Liquid water heats up and becomes steam

Answer

Ice melts into liquid water

Answer

Water seeps into the ground