1st Qtr District Review

Question 1

Look at the graph: What factor is the variable in this experiment?

Accepted Answer

Flower color

Question 2

Why do you think the Portland rose plant is included in all of the groups to be studied?

Accepted Answer

The type of plant is a control factor

Question 3

Water has the same properties as the elements that make it up.

Accepted Answer

False

Question 4

Which of the following would most accurately measure the volume of vinegar?

Accepted Answer

a graduated cylinder

Question 5

Mass is measured in ____ using a balance.

Accepted Answer

grams

Question 6

Which of the following is NOT a property of gases?

Accepted Answer

It keeps its volume in different containers

Question 7

If you counted the # of bees visiting each flower color from 9 - 10 a.m., you are collecting...

Accepted Answer

Quantitative data

Question 8

Which chemical equation is the product of water?

Accepted Answer

H2O

Question 9

As a piece of iron melts, its molecules ____

Accepted Answer

Absorb thermal energy and start to vibrate faster

Question 10

A substance with a definite volume and a definite shape is a _____

Accepted Answer

Solid

Question 11

Sulfuric acid (H2SO4) is made up of _______ atoms. (Hint: Not asking for # of Elements)

Accepted Answer

7

Question 12

Which of the following is NOT part of a well designed experiment?

Accepted Answer

Multiple independent variables

Question 13

Which of the following hypotheses could be tested by this? (Use the Graph)

Accepted Answer

Honeybees prefer to visit red flowers

Question 14

Which statement about particles in an atom is false?

Accepted Answer

Electrons, protons, and neutrons are found in the nucleus

Question 15

Which equation shows that the total mass during a chemical reaction stays the same?

Accepted Answer

Mg + Cl2 = MgCl2

Question 16

Kyla's frozen popsicle has turned into a liquid. The frozen popsicle has reached its ____

Accepted Answer

melting point

Question 17

Testing temp & seed germination, what variable should change to see the most rapid growth?

Accepted Answer

The temperature at which the seeds are kept

Question 18

Which of the following do water (H20), rust (Fe2O3), and salt (NaCl) have in common?

Accepted Answer

Water, rust and salt are all compounds

Question 19

The caterpillar did not eat the moth because it is not a carnivore is an example of ____

Accepted Answer

an inference

Question 20

Which of the following examples of patient data is an example of qualitative observations?

Accepted Answer

Skin Tone- Flushed

Question 21

Which of these is not a physical property?

Accepted Answer

Flammability

Question 22

The element chlorine (Cl) has an atomic # of 17 and a mass # of 35.453. Which is true?

Accepted Answer

Chlorine has 17 protons, 18 neutrons, 17 electrons

Question 23

A drain cleaner when mixed with water, bubbles & becomes hot. Which describes what is going on?

Accepted Answer

A chemical reaction

Question 24

CO2 is composed of what elements?

Accepted Answer

Carbon (C) and Oxygen (O)

Question 25

Melting a marshmallow or chocolate is an example of __________

Accepted Answer

A physical change

1st Qtr District Review

Questions 25

1st Qtr District Review

Questions 25