Free Printable CH 1 & 2 Test

1.

Pick all examples of a living thing.

a)

A maple tree

b)

Dirt

c)

A bacterial cell

d)

Sand

2.

How do we know that a seed is alive?

a)

It grows and develops.

b)

It comes from the Earth.

c)

It has a protective shell.

d)

They are often carried by the wind.

3.

A living thing can respond to stimuli.

a)

True

b)

False

4.

Which of the following is true for ALL living things? (hint: more than one correct answer)

a)

All living things eat other organisms to survive.

b)

All living things use energy.

c)

All living things need oxygen.

d)

All living things reproduce.

5.

To make good qualitative observations, you only need to use one of your senses.

a)

True, you can tell everything you need to know just by looking at it.

b)

False, you should use many of your senses to learn more about it.

c)

True, using only your sense of smell will do the trick.

d)

False, you only need 2 of your senses to make good observations.

6.

Which of the following is a quantitative observation?

a)

The bird is very colorful.

b)

A hummingbird visits a flower 7 times in 24 hours.

c)

The bird has many, many feathers.

d)

It is a bird.

7.

What is the first step in solving a problem?

a)

Make an observation

b)

Design and conduct an experiment

c)

Make a hypothesis

d)

Share your results

8.

A scientific theory is a guess about why something happens based on little evidence.

a)

False

b)

True

9.

_________ is a logical interpretation based on prior knowledge, but is not testable.

a)

guessing

b)

hypothesis

c)

inference

d)

conclude

10.

The higher the pH, the more active Pepsin and Trypsin are.

a)

True

b)

False

11.

In most cases, Monarch Butterfly appearance usually comes after Milkweed appearance.

a)

True

b)

False

12.

1.2m is larger than 1120 mm. (hint: convert to the same units, then compare)

a)

True

b)

False

13.

True or false: 2.5 kg = 2500 g

a)

True

b)

False

14.

0.725 g = _________mg

a)

725

b)

7.25

c)

72.5

d)

0.000725

15.

Which of the following is part of the Scientific Methodology process?

Hint: There is more than 1 correct answer.

a)

Making a guess

b)

Conducting experiments without a control group

c)

Analyzing data

d)

Forming hypotheses

e)

Drawing conclusions

16.

In the Marsh Experiment (from your textbook), what are the independent and dependent variables? (select all correct options)

a)

Independent: Nitrogen Added

b)

Independent: Increased Sunlight Exposure

c)

Dependent: Grass Growth

d)

Dependent: Nitrogen Added

17.

What are the 4 qualities all good scientists have? (select all correct options)

a)

Curiosity

b)

Smart

c)

Skepticism

d)

Open-mindedness

e)

Creativity

18.

What is homeostasis?

a)

Maintaining an internal balance

b)

The process of a caterpillar changing into a butterfly

c)

A sudden change in temperature

d)

Instability within a system

19.

This bullseye demonstrates...

a)

High Accuracy & High Precision

b)

High Accuracy & Low Precision

c)

Low Accuracy & High Precision

d)

Low Accuracy & Low Precision

20.

Which type of graph shows change over time?

a)

bar graph

b)

line graph

c)

pie chart

21.

Attraction between molecules of different substances, demonstrated by this station activity.

a)

adhesion

b)

cohesion

c)

covalent bond

d)

ionic bond

22.

attraction between molecules of the same substance

a)

cohesion

b)

adhesion

c)

enzyme

d)

protein

23.

nonpolar molecule composed of carbon, hydrogen, and oxygen; includes fats, oils and waxes

a)

lipid

b)

amino acid

c)

carbohydrate

d)

nucleic acid

24.

molecular subunit of a polymer; building block of a larger molecule

a)

monomer

b)

substrate

c)

enzyme

d)

ion

25.

polymer of nucleotides; the genetic material of organisms

a)

nucleic acid

b)

carbohydrate

c)

protein

d)

lipid

26.

large, carbon-based molecule formed by monomers

a)

polymer

b)

solution

c)

ion

d)

atom

27.

polymer composed of amino acids linked by peptide bonds; folds into a particular structure depending on bonds between amino acids

a)

protein

b)

carbohydrate

c)

lipid

d)

nucleic acid

28.

Proteins are polymers formed from the monomers...

a)

lipids

b)

amino acids

c)

carbohydrates

d)

nucleic acids

29.

Which of the following has the function of storing and transmitting genetic information?

a)

carbohydrates

b)

proteins

c)

lipids

d)

nucleic acids

30.

What does it mean when a molecule is polar?

a)

that the molecule has unevenly distributed charges

b)

it can be found only in the North and South Poles

c)

that the molecule has evenly distributed charges

d)

it turns into an ice cube

31.

This property of water causes water molecules to be drawn together, which is why drops of water form beads on a smooth surface.

a)

adhesion

b)

cohesion

c)

capillary action

d)

heat capacity

32.

Which of these is correct about carbohydrates?

a)

Monosaccharides are made up of smaller polysaccharides.

b)

Only some polysaccharides are made up of monosaccharides.

c)

Glucose is a polysaccharide.

d)

Monosaccharides (glucose) are used to build larger molecules like disaccharides and polysaccharides (starch).

33.

A polar molecule ________________.

a)

is caused by the unequal sharing of electrons

b)

causes one side of a molecule to have a partial positive charge and the other side to have a partial negative charge

c)

will bond with other polar molecules

d)

all of the above are correct

34.

Which of these are organic molecules (macromolecules). Select all that apply

a)

Nucleic acids

b)

Proteins

c)

Carbohydrates

d)

Water

e)

Lipids

35.

Draw a sketch of a water molecule. Include correct structure, label the atoms (use element symbols), and show which end is positive (+) and which is negative (-). Use correct colors.

36.

Draw a Hydrogen Bond (H+ Bond) between any three water molecules in the picture. Accurately demonstrate where the bonds connect.

37.

Question: The material covered in a two week period in Experiment 2 is the ______ variable.

Experiment 2: One of your pod group members decides to conduct an experiment to show how the amount of sleep students get affects their grades. She makes a survey that asks her peers how many hours of sleep they get on average on weekdays. After reading the results, she puts peers into 3 categories, Group 1: little sleep (4-5 hours), Group 2: moderate sleep (6-7 hours), Group 3: high sleep (8 or more hours). She hypothesizes that if students get more sleep, they will get better grades. To test her hypothesis, she asks Mrs. Ciarelli to give all her Biology students a fake pop quiz that covers the material we learned in class over the past 2 weeks. After analyzing the results of the quiz, she found that students who got more hours of sleep on average performed better on the fake pop quiz.

a)

control

b)

independent

c)

dependent

38.

Question: The amount of sleep (on average) in Experiment 2 is the ______ variable.

Experiment 2: One of your pod group members decides to conduct an experiment to show how the amount of sleep students get affects their grades. She makes a survey that asks her peers how many hours of sleep they get on average on weekdays. After reading the results, she puts peers into 3 categories, Group 1: little sleep (4-5 hours), Group 2: moderate sleep (6-7 hours), Group 3: high sleep (8 or more hours). She hypothesizes that if students get more sleep, they will get better grades. To test her hypothesis, she asks Mrs. Ciarelli to give all her Biology students a fake pop quiz that covers the material we learned in class over the past 2 weeks. After analyzing the results of the quiz, she found that students who got more hours of sleep on average performed better on the fake pop quiz.

a)

control

b)

independent

c)

dependent

39.

Question: The performance on pop quiz in Experiment 2 is the ______ variable.

Experiment 2: One of your pod group members decides to conduct an experiment to show how the amount of sleep students get affects their grades. She makes a survey that asks her peers how many hours of sleep they get on average on weekdays. After reading the results, she puts peers into 3 categories, Group 1: little sleep (4-5 hours), Group 2: moderate sleep (6-7 hours), Group 3: high sleep (8 or more hours). She hypothesizes that if students get more sleep, they will get better grades. To test her hypothesis, she asks Mrs. Ciarelli to give all her Biology students a fake pop quiz that covers the material we learned in class over the past 2 weeks. After analyzing the results of the quiz, she found that students who got more hours of sleep on average performed better on the fake pop quiz.

a)

control

b)

independent

c)

dependent

40.

A pod group member is struggling to measure 30g of yeast on a scale for an experiment. She claims the scale is broken. To test her claim, you put a 100g weight on the scale. The scale reads 98.76g. This scale is not ________.

a)

Precise

b)

Accurate

CH 1 & 2 Test

Total questions: 40

Worksheet time: 3hrs 20mins

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