Ever wondered how the tendons in your hand work? This science project shows you how!
# Cut out cardboard pieces for arm, hand slot, and back support.
# Use a ruler to bend the joints in the cardboard hand.
# Cut bendy straws into smaller pieces. 20 small pieces that go in between the joints. 4 pieces that have the bendy part of the straw. 4 pieces that are twice as long as the pieces in between the joints.
# Hot glue straw pieces onto front of cardboard hand.
# Poke a hole through the cardboard for right beneath the thumb and continue hot gluing straw pieces on the other side of the arm.
# Cut the big rectangle piece into an “H” pattern. Fold cardboard pieces inward and hot glue the edges. Stick onto cardboard arm.
# With 5 pieces of string, thread each one through the corresponding straw on each finger. Tie the ends and tie a finger loop at the bottom of each. (Optional: add a drop of hot glue to the knot)
# Hot glue longer rectangles together and use more hot glue to stick to the back of arm.
# Decorate if you want to!