Task: At this station, you will estimate (make your own best guess at) the answer without using measuring instruments.

Materials:

• Plastic box with colored water labeled "C"
• Green paper leaf labeled "L"
• Wire circle
• Rubber ball labeled "B"
• Tube with water labeled "T"
• Container labeled "C"
• Wooden rod
• Package labeled "P"

1. How much colored water (cm³) is there in plastic box C?

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2. What is the area (cm²) of the green paper leaf L?

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3. How long (cm) is the wire that makes the circle?

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4. What is the mass (g) of ball B?

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5. How much water (cm³) is there in tube T?

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6. What is the area (cm²) of the bottom of container C?

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7. How long (cm) is the wooden rod?

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8. What force (N) do you use when you lift up parcel P by the loop of the string?

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9. What is the area (cm²) of the top of tube T?

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10. What is the mass (g) of the circle of wire?

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