Questions w ith 100% Ver ifi ed Cor r ect Answ er s
1. Mrs. Arton wants her students to learn to think scientifically. Which of
the following is most likely to result in the deepest scientific
understanding?
A. Providing drill and practice preparation for the FCAT science exam
B. Teaching students to design and do simple experiments
C. Obtaining classroom subscriptions to science periodicals
D. Asking student to locate examples of real-world science in newspapers.
Answer B. teaching students to design and do simple experiments
note
Hands-on activities result in deeper science learning.
2. Mr. Isaac wrote the following equation on the board
CH4 + 2 O2 ’C’
What is true of the equation?
I. CH4 is a reactant.
II. 2 O2 is a reactant.
III. CO2 is a reactant.
IV. 2 H2O is a reactant.
,A. I and II
B. II and III
C. III and IV
D. II and IV
Answer A. I and II
note
reactants are materials to the left of the arrow
3. Mr. Isaac wrote the following equation on the board
CH4 + 2 O2 ’C’
What is true of the equation?
I. CH4 is a product
II. 2 O2 is a product.
III. CO2 is a product.
IV. 2 H2O is a product.
A. I and II
B. II and III
C. III and IV
D. II and IV
Answer C. III and IV
Materials to the right of the arrow are products.
,4. Which of the following is true of matter?
A. Matter always has density.
, O2 + 2 H2O.
O2 + 2 H2O.
B. Matter is always buoyant.
C. Matter can change physically, but not chemically.
D. Matter only consists of one type of atom.
Answer A. Matter always has density note
Matter is anything with mass and volume and density is the ratio of mass to volume.
5. Shale, limestone and sandstone are examples of
a. ignious rock