7th Grade Science Quarter 3 Assessment Practice

1. Which of the following is NOT a step in the scientific method?

• Making observations
• Forming a hypothesis
• Accepting the first result without verification
• Drawing conclusions from data

2. What is the most important reason for wearing safety goggles during a lab experiment?

• To look professional
• To protect your eyes from harmful substances
• To improve your vision
• To match other students

3. When conducting an experiment, what is the purpose of a control group?

• To make the experiment more complicated
• To provide a basis for comparison
• To create additional variables
• To speed up the experiment

4. A student notices that plants grow taller when exposed to classical music. Which of the following would be the best hypothesis?

• I think plants like music
• Plants exposed to classical music will grow faster than plants not exposed to music
• All plants need music to grow
• Classical music makes everything better

5. If you accidentally spill a chemical in the lab, what should you do first?

• Clean it up yourself
• Run out of the room
• Tell your teacher immediately
• Pour water on it

6. What is the dependent variable in an experiment?

• What the scientist changes on purpose
• What is being measured or observed as a result
• What stays the same throughout the experiment
• The initial observation

7. When making observations, which sense should NEVER be used in a science lab?

• Sight
• Taste
• Touch
• Smell

8. Which safety equipment should you know the location of BEFORE starting any lab work?

• Fire extinguisher only
• First aid kit only
• Emergency shower only
• All safety equipment including eyewash station, fire extinguisher, and first aid kit

9. What is the purpose of a hypothesis?

• To prove you're always right
• To make a testable prediction
• To complete the experiment quickly
• To avoid doing research

10. This piece of equipment will_____.

• Smother a small Fire
• Keep chemical spills from spreading
• wipes spills up at your lab station
• restart a stopped heart