8th Grade Science Quiz

We haven’t done a quiz of any type in a while, so I thought I’d let you take one of my physical science quizzes. I only picked out ten questions; I figured that was more than enough. So, without further ado:

1. Define “Atom.”

2. Define “Molecule.”

3. Fifty grams of a carbon disulfide can be broken down into 42.1 grams of sulfur and 7.9 grams of carbon. Is carbon disulfide made up of atoms or molecules?

4. If you put iron near a magnet, the iron will be attracted to the magnet. Rust is made up of molecules which contain iron atoms, oxygen atoms, and hyrdrogen atoms. Rust is not attracted to a magnet. If rust contains iron atoms, and iron is attracted to a magnet, why isn’t rust attracted to a magnet?

5. A statue is made out of copper and displayed outside. After many years, what color will the statue be?

6. Have scientists actually seen atoms?

7. Give the numerical meaning for the prefixes centi, milli, and kilo.

8. If you wanted to measure an object’s mass, what metric unit would you use? What English unit would you use?

9. If you wanted to measure an objects length, what metric unit would you use? What English unit would you use?

10. If you wanted to measure an object’s volume, what metric unit would you use? What English unit would you use?

As always, answers will be posted in three days, on Saturday. Have fun!

Answers to the Summer Science Quiz

Here are the answers to the quiz on plants we posted:

I. Matching: Match each term with the definition.

A. cuticle                                                                     __B__ 1. a plant’s response to gravity

B. geotropism                                                              __G__ 2. the main root that grows very deep

C. glucose                                                                   __C__ 3. the food a plant needs to live

D. hydrotropism                                                           __H__ 4. a plant’s response to touch

E. root cap                                                                   __A__ 5. a waxy substance on the upper surface of a leaf

F. sundew

G. taproot

H. thigmotropism

 

II. MULTIPLE CHOICE: Write the letter of the correct answer in the blank.

6. The pores on the underside of a leaf are called     B    .

                            A. chloroplasts        B. stomata

                            C. cuticles               D. tendrils

7.      B    is the chemical process by which plants produce food.

                           A. epiphyte               B. photosynthesis

                          C. insectivorous         D. phototropism

8. A(n) __C__ is an especially large vein that runs up the middle of many leaves.

                          A. epiphyte                B. spine

                          C. midrib                   D. taproot

9. The     A     is an insectivorous plant that traps its food using sticky drops.

                         A. sundew                   B. bladderwort

                         C. pitcher plant            D. Venus flytrap

10. A     C    , also called a runner, is a stem that grows along the surface of the ground.

                        A. root hair                  B. stomata

                        C. stolon                      D. tendril

 

Have a great weekend!

Summer Science Quiz

I thought I’d put up a summer science quiz just to keep the good old brain working 🙂 It’s good to have some basic knowledge in as many fields as possible. Would you agree with that statement? Anyway, this quiz happens to be on plants – have fun!

I. Matching: Match each term with the definition.

A. cuticle                                                                     ____ 1. a plant’s response to gravity

B. geotropism                                                              ____ 2. the main root that grows very deep

C. glucose                                                                   ____ 3. the food a plant needs to live

D. hydrotropism                                                           ____ 4. a plant’s response to touch

E. root cap                                                                   ____ 5. a waxy substance on the upper surface of a leaf

F. sundew

G. taproot

H. thigmotropism

 

II. MULTIPLE CHOICE: Write the letter of the correct answer in the blank.

6. The pores on the underside of a leaf are called     ?    .

                            A. chloroplasts        B. stomata

                            C. cuticles               D. tendrils

7.      ?     is the chemical process by which plants produce food.

                           A. epiphyte               B. photosynthesis

                          C. insectivorous         D. phototropism

8. A(n)      ?    is an especially large vein that runs up the middle of many leaves.

                          A. epiphyte                B. spine

                          C. midrib                   D. taproot

9. The     ?     is an insectivorous plant that traps its food using sticky drops.

                         A. sundew                   B. bladderwort

                         C. pitcher plant            D. Venus flytrap

10. A     ?    , also called a runner, is a stem that grows along the surface of the ground.

                        A. root hair                  B. stomata

                        C. stolon                      D. tendril

My First Science Quiz

Today I took my first science quiz of this year! It was about the sun and the constellations. Unfortunately, they drew pictures of three constellations and had me name them, so I can’t do that part, but I’ll ask the questions about the sun. Oh, and I got a 99 on this quiz! I forgot how to spell scorpion. Okay, here’s the quiz!

-John-

FILL IN THE BLANK:  Write the answer that best completes the statement.

______________________ 1.     The dark spots on the surface of the sun are called      ?             ?      .

______________________ 2.     The sun is       ?       miles from the earth.

______________________ 3.     The part of the sun that we see is called the       ?      .

______________________ 4.     The very center of the sun is called the       ?       .

______________________ 5.     The vapor blanket around the sun is the       ?     .

______________________ 6.     Many ancient people thought the sun was a       ?     .

______________________ 6.     The sun helps plants produce food through the process of       ?      .

Take A 5th Grade Science Quiz

I took another science quiz today and got a hundred! I was quite happy even though the quiz is really easy. I didn’t study that much, though. I don’t think you’ll have too much trouble with this one. Here it is! Click here for the answers.

MULTIPLE CHOICE: Write the letter of the correct answers in the blank.

____   1.   The term ____ can be defined as “a push or pull.”

A. gravity                                     C.  mass

B.friction                                     D. force

____   2.   What kind of force occurs when one object pushes against another?

A. gravity                                      C. contact force

B. friction                                      D. motion

____   3.   A force that resists motion is called ____.

A. contact force                          C. gravity

B. friction                                    D. mass

____   4.   The force of attraction between objects is known as ____.

A. gravity                                     C. contact force

B. motion                                     D. mass

____   5.   What kind of force do you use when you tap your pencil?

A. gravity                                    C. contact force

B. friction                                    D. mass

FILL IN THE BLANK: Tell whether each example represents potential or kinetic energy.

_____________________      6. a boy opening a can of coke

_____________________       7. an unopened can of coke

_____________________       8. a girl jumping rope

_____________________       9. a book on the edge of a table

_____________________      10. a parked car