A way of learning about the natural world. a. science b. scientific inquiry c. scientific theory d. scientific method

A. science

______ are factors that can change in an experiment a. controls b. variables c. data d. concepts

b. variables

What is the purpose of using a variable in an experiment? A. to serve as the factor that stays the same b. to have the same results as the control c. to be the factor that gets tested d. to develop the hypothesis

c. to serve as the one factor that gets tested

Recorded observations or measurements are called a. variables b. theories c. data d. scientific method

c. data

The amount of liquid in a glass would most likely be measured using which of the following units? a. millilitersb. centimeters c. grams d. cubic meters

a. milliliters

All living things get energy either directly or indirectly from a. animals b. sun c. plants d. water

b. sun

The building up or breaking down of chemical substances necessary for life is called a. ingestion b. respiration c. excretion d. metabolism

Organisms receive signals that causes them to react. What are these signals known as? A. responses b. signals c. movements d. stimulus

An independent variable is a. what the scientist changes b. what changes because of what the scientist changed c. another name for hypothesis d. also called the control

a. what the scientist changes

The mistaken idea that living things come from nonliving sources is known as a. stimuli b. homeostasis c. heterotrophs d. spontaneous generation

Organsims use ________to keep conditions like body temperature at a constant rate in spite of the conditons outside a. stimulus b. responses c. homeostasis d. energy

c. homeostasis

The process of breaking down food so that it can be used by living things is a. ingestion b. digestion c. respiration d. transport

b. digestion

In order to live all plants and animals need a. darkness b. helium c.food d. nitrogen

c. food

A well-tested experiment becomes a concept called A. scientific inquiry b. scientific method c. science d. scientific theory

Measuring temperature in the Metric System what units would you be using? A. meters b. liters c. grams d. degrees Celsius

Organisms that are made of only one cell are called a. unicellular b. multicellular c. autotrophs d. heterotrophs

a. unicellular