-»

Life Science~~Worksheet Quiz 1

time limit:t < 10 min - Developed by: Katie - Developed on: 2003-10-01 - 5,542 taken - User Rating: 3,3 of 5 - 67 Votes

Life Science~~Worksheet Quiz 1

The world of life science

Question 1:

The set of skills or steps that scientists use to answer questions is the _____

	controlled experiment
	I don't know
	scientific method

Question 2:

After recognizing a problem or asking a question, life scientists form one or more _______________ which are possible explanations for what has been observed.

	predictions
	I don't know
	hypotheses

Question 3:

In a controlled experiment, the 3___________ is the one factor that differs between the 4___________ and the experimental group. (Fill in 3______)

	prediction
	variable
	variable group
	control group

Question 4:

Fill in 4________ from the above question.

	control group
	variable group
	variable
	prediction

Question 5:

_________ is a measure of how much surface an object has

	area
	volume
	I don't know

Question 6:

Life scientists use _________ to describe the measurement of an object's mass

	grams
	meters
	I don't know

Question 7:

Which of the following would NOT be an area of study in life scientist?

	studying how volcanoes are formed
	studying how lions and hyenas interact
	measuring the rate at which bacteria divide
	comparing the reproduction of arctic plants with that of desert plants

Question 8:

The steps of the scientific method

	must all be used in every scientific investigation
	are not always used in order
	must always be used in the same order
	start with the development of a theory

Question 9:

In a controlled experiment,

	a control group is compared with one or more experimental groups.
	there are at least two variables
	all factors should be different
	a variable is not needed

Question 10:

When a scientist finds that a hypothesis is wrong, the scientist usually

	stops studying science
	tries to find another explanation for what has been observed
	feels that nothing valuable was learned.
	adds an additional variable to his or her experiment

Question 11:

What tool would a life scientist use to get a 3d image of a microscopic organism?

	scanning electron microscope
	CT scan
	X ray
	magnifying lens

Question 12:

The International System of Units

	is based on standardized body measurements
	contains units that are based on the number 10
	is useful only for measuring lengths
	is a device used to measure volume

Question 13:

Which SI units can be used to describe the measurement of volume?

	gram, kilogram, milligram
	meter, kilometer, centimeter
	cm3, liter, milliliter

Question 14:

Which SI units are used to describe the mass of an object?

	cm3, liter, milliliter
	meter, kilometer, centimeter
	gram, kilogram, milligram

Question 15:

The volume of an egg and water in a graduated beaker is 200 mL. After the egg is removed, the volume of the water is found to be 125 mL. What is the volume of the egg in cm3?

	75 mL
	25 cm3
	75 cm3
	150 cm3

This Quiz has been designed by Katie.