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Jim’s friend suggests he use a piece of two-dollar plastic as part of a roof design for the bird feeder. This material would last longer because it would not rot. Which requirements would this suggestion fall under?
Rent old tractors to plow fields. Invest in modern milking machines. Use computers to control farm equipment.
Attach a strong magnet to the end of the tool.
protect the seeds and cost less
paint the prototype to make it look more colorful
Deck Screw - Cost: $5 a box...Description: does not rust and fastens wood together tightly
Which prototype gives the most accurate direction?
test again AND build the board with stronger material
A: color; $0.12 cost per print; 8 copies per minute
Deena compares four different printers for her computer. She wants it to print in color and print more than six pages per minute. She wants to spend less than $0.13 per copy. Her research is shown in the table. Which printer should she choose?
Rent old tractors to plow fields. Invest in modern milking machines. Use computers to control farm equipment.
Attach a strong magnet to the end of the tool.
protect the seeds and cost less
paint the prototype to make it look more colorful
Deck Screw - Cost: $5 a box...Description: does not rust and fastens wood together tightly
Which prototype gives the most accurate direction?
test again AND build the board with stronger material
A: color; $0.12 cost per print; 8 copies per minute
Le designed a new kind of skateboard that anyone can use. He tested the skateboard with three different weights, 65, 80, and 105 pounds. With 105 pounds on it, the center sagged to the ground. What should Le’s next two steps be?
Rent old tractors to plow fields. Invest in modern milking machines. Use computers to control farm equipment.
Attach a strong magnet to the end of the tool.
protect the seeds and cost less
paint the prototype to make it look more colorful
Deck Screw - Cost: $5 a box...Description: does not rust and fastens wood together tightly
Which prototype gives the most accurate direction?
test again AND build the board with stronger material
A: color; $0.12 cost per print; 8 copies per minute
Paul designed a stand for a fish tank in the classroom. His prototype may need improvements. Which action will NOT help Paul improve his design?
Rent old tractors to plow fields. Invest in modern milking machines. Use computers to control farm equipment.
Attach a strong magnet to the end of the tool.
protect the seeds and cost less
paint the prototype to make it look more colorful
Deck Screw - Cost: $5 a box...Description: does not rust and fastens wood together tightly
Which prototype gives the most accurate direction?
test again AND build the board with stronger material
A: color; $0.12 cost per print; 8 copies per minute
Joel designed a tool for picking up metal screws that fall while he works on his car. The tool picks up the screws but drops them before Joel can pull them out. Which design change should he try next?
Rent old tractors to plow fields. Invest in modern milking machines. Use computers to control farm equipment.
Attach a strong magnet to the end of the tool.
protect the seeds and cost less
paint the prototype to make it look more colorful
Deck Screw - Cost: $5 a box...Description: does not rust and fastens wood together tightly
Which prototype gives the most accurate direction?
test again AND build the board with stronger material
A: color; $0.12 cost per print; 8 copies per minute
Farmers want to improve their farms with better technology. Which methods will NOT help them meet this need?
Rent old tractors to plow fields. Invest in modern milking machines. Use computers to control farm equipment.
Attach a strong magnet to the end of the tool.
protect the seeds and cost less
paint the prototype to make it look more colorful
Deck Screw - Cost: $5 a box...Description: does not rust and fastens wood together tightly
Which prototype gives the most accurate direction?
test again AND build the board with stronger material
A: color; $0.12 cost per print; 8 copies per minute
Jill and Jack are making a weathervane that tells the direction of wind. They tested 3 prototype designs in the same place. They recorded their data every hour for 4 hours. They compared their data to the news. Which ? were they trying to answer?
Rent old tractors to plow fields. Invest in modern milking machines. Use computers to control farm equipment.
Attach a strong magnet to the end of the tool.
protect the seeds and cost less
paint the prototype to make it look more colorful
Deck Screw - Cost: $5 a box...Description: does not rust and fastens wood together tightly
Which prototype gives the most accurate direction?
test again AND build the board with stronger material
A: color; $0.12 cost per print; 8 copies per minute
Larry is putting together a small, wooden flower box. He needs something to hold the wood together. It must cost less than $10 and should not rust. Which option is best for him to use?
Rent old tractors to plow fields. Invest in modern milking machines. Use computers to control farm equipment.
Attach a strong magnet to the end of the tool.
protect the seeds and cost less
paint the prototype to make it look more colorful
Deck Screw - Cost: $5 a box...Description: does not rust and fastens wood together tightly
Which prototype gives the most accurate direction?
test again AND build the board with stronger material
A: color; $0.12 cost per print; 8 copies per minute
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