Basic Middle School Science Knowledge

1. A ____ is used to find the mass of an egg.

• balance

• graduated cylinder

• ruler

• thermometer

2. The length of the pencil is 18 _____.

• millimeters

• centimeters

• meters

• kilometers

3. What would you use to accurately measure 24 mL of water?

• ruler

• graduated cylinder

• beaker

• balance

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

• control

• multiple trials

• reproducible procedure

• small sample size

Tags

NGSS.MS-PS2-2

5. A scientist is interested in comparing the circulatory system of different types of worms. What is the scientist most likely to do first?

• analyze data

• collect data

• develop a procedure

• make a conclusion

Tags

NGSS.MS-LS4-2

6. Sam wonders which of his friends can run the fastest. He decides that a race starting at the maple tree and ending at the oak tree, will answer his question. Which variable(s) is he planning to control?

• time

• distance

• both time and distance

• neither time or distance

Tags

NGSS.MS-PS2-2

7. Kate doesn't like eating carrots. She decides to provide her parents with qualitative data to support her opinion. Which of the following is NOT qualitative data?

• carrots taste dry

• carrots take a long time to peel

• an uncut carrot is two inches too long to fit in her lunch box

• a raw carrot is hard to chew

8. Ali wants to find out how long it takes his baby sister to fall asleep. Variables in his experiment include:

• noise levels

• time of day

• both noise levels and time of day

• neither noise levels or time of day

9. The statement, when the sun came out, it made the rain stop is an example of a(n) _____.

• hypothesis

• inference

• prediction

• observation

Sean is thinking about using salt water to water his plants. Sean places 10 spider plants near a window for 20 days. Each day, he waters five plants with 10 mL of salt water and five plants with 10 mL of fresh water. He measures their heights before and after the 20 days. The question he is investigating is will plants grow taller with fresh water or salt water?

10. Which of the following could be a hypothesis for Sean's experiment?

• plants need water to grow

• Plants need sunlight to grow.

• Salt water affects the growth of plants.

• Different types of plants are affected differently by salt water.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4