Scientific Method

What do we call a step by step procedure for scientific problem solving?

• observation

• research

• guessing

• the scientific method

Tags

NGSS.MS-PS2-2

In an experiment to discover which brand of bug spray does best at preventing mosquitoes bites, the brand of bug spray is the -

• control

• independent variable

• constant

• dependent variable

Tags

NGSS.MS-PS2-2

What is the first step in the scientific method?

• analyze data

• draw conclusions

• perform and experiment

• observe and recognize a problem

An experiment is conducted to test the hypothesis that a certain type of houseplant grows best when exposed to exactly four hours of sunlight per day. Which is the dependent variable?

• hours of sunlight

• growth of plant

• type of soil

• amount of water

In an experiment to determine which bug spray works best to keep mosquitoes from biting, what is the dependent variable?

• the cost of the spray

• the place where you conduct the experiment

• the amount of spray

• the number of bug bites

Experiments measure how changing the __________variable affects the __________ variable.

• controlled, other

• dependent, independent

• primary, secondary

• independent, dependent

The application of science to make tools that people can use is known as -

• tectonics

• technology

• accuracy

• precision

While conducting an experiment, the scientist should -

• attempt to make his experiment confirm his hypothesis

• do nothing

• read as much as possible

• observe carefully and collect data

A hypothesis is a prediction or explanation that can be -

• researched

• tested by experimentation

• proven

• modeled

Scientists observe the world around them and ask questions. Which is NOT an observation?

• The table is dirty.

• The table is hard.

• The table is expensive.

• The table is made of wood.