Cardboard hydraulic hand model for 11-year-olds
This project is for 11-year-olds building a cardboard hand that bends using water-filled syringes. It is a mechanical model activity, not a medical lesson.
What to buy
Corrugated cardboard sheets
2
Cardboard hand template printout
1
Plastic syringes without needles
10
Clear flexible tubing
5 feet
Water
2 cups
Food coloring
1 bottle
Wooden craft sticks
12
Cotton string
12 feet
Masking tape
1 roll
Hot glue gun for adult use
1
Glue sticks for hot glue gun
4
Scissors
1 pair
Ruler
1
Pencil
1
Who this list is for
This cardboard hydraulic hand model is for 11-year-olds exploring a mechanical bending motion with water-filled syringes. It is a build activity, not a medical lesson, and an adult should handle the hot glue gun.
How to use this list
Trace the cardboard hand template onto corrugated cardboard sheets, then cut and reinforce sections with wooden craft sticks. Use the ruler and pencil for spacing, and attach cotton string for the finger movement. Connect plastic syringes without needles using clear flexible tubing, add water tinted with food coloring, and test the motion slowly. Use masking tape for temporary placement before adult hot-glue work.
Common mistakes
Do not use syringes with needles. Avoid filling tubing too quickly, which can make spills harder to manage. Keep the hand flat while checking each connection, and do not use the hot glue gun without adult help. This model is for observing movement, not for attaching to a person.
What is on this list
The list includes two corrugated cardboard sheets, a hand template printout, 10 plastic syringes without needles, five feet of clear flexible tubing, two cups of water, and food coloring. It also has craft sticks, 12 feet of cotton string, masking tape, adult-use hot glue tools and four glue sticks, scissors, ruler, and pencil. Cross off supplies you own.
When you are done
Wipe up water, empty the tubing and syringes over a sink, and let glued parts cool fully. Store the model flat so the cardboard fingers and tubing are not bent.
FAQ
Who is "Cardboard hydraulic hand model for 11-year-olds" for?
This cardboard hydraulic hand model is for 11-year-olds exploring a mechanical bending motion with water-filled syringes. It is a build activity, not a medical lesson, and an adult should handle the hot glue gun.
How should I use "Cardboard hydraulic hand model for 11-year-olds"?
Trace the cardboard hand template onto corrugated cardboard sheets, then cut and reinforce sections with wooden craft sticks. Use the ruler and pencil for spacing, and attach cotton string for the finger movement. Connect plastic syringes without needles using clear flexible tubing, add water tinted with food coloring, and test the motion slowly. Use maskin…
What should I skip or avoid with "Cardboard hydraulic hand model for 11-year-olds"?
Do not use syringes with needles. Avoid filling tubing too quickly, which can make spills harder to manage. Keep the hand flat while checking each connection, and do not use the hot glue gun without adult help. This model is for observing movement, not for attaching to a person.
What is on the "Cardboard hydraulic hand model for 11-year-olds" list?
The list includes two corrugated cardboard sheets, a hand template printout, 10 plastic syringes without needles, five feet of clear flexible tubing, two cups of water, and food coloring. It also has craft sticks, 12 feet of cotton string, masking tape, adult-use hot glue tools and four glue sticks, scissors, ruler, and pencil. Cross off supplies you own.
What should I do when I am done?
Wipe up water, empty the tubing and syringes over a sink, and let glued parts cool fully. Store the model flat so the cardboard fingers and tubing are not bent.
Related lists
For general planning only. Valedo does not guarantee this list’s accuracy, completeness, or suitability. Verify information before relying on it. Not a substitute for professional advice or safety training.