2. You want to keep an ice cube from melting for the longest time. Which material would be the best insulator to wrap it in?

3.A robot is programmed to follow these steps: Move 3 steps forward, Turn right. If it repeats this sequence 4 times, what shape will its path form?

4.Which simple machine uses a plank and a fulcrum (a pivot point) to lift a heavy object with less effort?

5.A scientist needs to measure the exact amount of water a small plant drinks. Which tool is best for measuring a precise volume of liquid?

6.You are designing a rectangular garden bed with a perimeter of 20 meters. Which set of dimensions (length and width) will give the largest area for your plants?

7. You want a toy car to stop quickly on a ramp. What surface material would create the most friction and slow the car down fastest?

8. When you take a picture with a digital camera, what does the sensor do?

9. In a bar graph showing the favorite colors of students, what does the height of each bar represent?

10. You are building a simple water filter using layers of materials. Which layer is best for removing large pieces of dirt and leaves from the water first?