Introduction to Science

A hypothesis is

• Just a random guess

• An educated guess based on observation

• Less than a thesis

• Nothing to worry about

Tags

NGSS.HS-PS1-2

Which of the following is a testable scientific question?

• What period do you have science?

• Do plants need soil to grow?

• Is pizza a chinese food?

• Does milk chocolate come from brown cows?

Tags

NGSS.MS-LS1-5

The graduated cylinder is filled with 25 ml of water.

• is a hypothesis

• is an observation

• is wrong

• is qualitative data

The variable which is changed on purpose is:

• Control

• Responding

• Dependent

• Independent

Science is

• never changing

• about supernatural events

• man's knowledge of the natural world

• not real

1.5 meters =

• 22 km

• 150 cm

• mass of an apple

• 1500 cm

Scientific Method

• is only used in science class

• is the steps used to answer a question reliably

• always has 9 steps

• not applied to testable questions

Tags

NGSS.MS-PS2-2

NGSS.MS-LS1-1

In a line graph

• independent variable is plotted on x axis.

• Independent variable is plotted on the horizontal axes

• Time is always independent.

• all of the above

Choose the correct hypothesis

• If I freeze a tennis ball, it will be less bouncy/

• a frozen tennis ball is not bouncy.

• If a tennis ball is frozen, then it will not bounce as high, because of reduced elasticity.

• why would you freeze a tennis ball?

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

The length of the hallway is 52.6 meters long. Which of the following sets of data indicates both accuracy and precision?

• 52.4 m, 52.5 m, 52.5 m, 52.6 m

• 46.4 m, 52.6 m, 48.0 m, 65.9 m

• 46.4 m, 46.2 m, 46.4 m, 46.4 m

• 51 m, 54 m, 50 m, 55 m