1. TUESDAY WARM UP September 15

2. To demonstrate safe practices during lab investigations in the classroom, which two pieces of safety equipment should you use? A. Safety goggles and a graduated cylinder B. Rubber boots and gloves C. Gloves and safety goggles D. A lab apron and a triple beam balance

3. Scientist collect and analyze information about organisms by observing them in their habitats. Which type of equipment would be the most appropriate to help you observe raccoons feeding in a fruit tree? A. Gloves B. Binoculars C. Pan balance D. Collecting net

4. Why is it important to perform repeated investigations during a lab activity? A. The results should be different every time B. One trial will often fail C. Each trial tests a new variable D. The reliability of the results increases with multiple trials

5. Which is an example of information that can be collected through detailed observations? A. “The rock is smooth and gray.” B. “What is the best brand of soap?” C. “Most people prefer black cars.” D. “How does sunlight help plants grow?”

6. Each measuring tool is designed to measure a specific property of an object or material. Which of these tools can be used to measure the volume of a liquid? A. Balance B. Spring scale C. Pipette D. Graduated cylinder