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Bird Feeders
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In this activity, learners build a bird feeder or feeders to attract birds for observation.

Marshmallow Models
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No glue is needed for learners of any age to become marshmallow architects or engineers.

Wolf Postures
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In this activity, learners investigate how wolves communicate with each other through different body postures.
Any Year Calendars
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This PDF contains 12 calendars (12 months). Each month contains activities about math. Things to do on familiar holidays (like July 4), less common holidays (like Backward Day), and any day.

Crystal Stencil Stars
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In this activity on page 6 of the PDF, learners dissolve Epsom salt in water and discover that the resulting solution can be used to create a work of art.

Make a Mobile!
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In this activity, learners make mobiles to explore the concepts of balance, counterbalance, weight, and counterweight.

Disappearing Statues
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In this activity (on page 8), learners model how marble statues and buildings are affected by acid rain.

Fishy Observations
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In this activity (page 1 of the PDF under SciGirls Activity: Rabbits), learners will visit a zoo, aquarium, or pet store to view a variety of fish.

Bouncing Yo-Yo
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In this activity, learners build unique yo-yos, which spin round and round without moving up and down.

Avi's Sensational Salt Dough
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In this activity on page 5 of the PDF, learners mimic the process for making bricks. Learners shape and bake creations from a dough that is made from flour, salt, and water.

My Insect
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In this activity, learners use information gathered from a variety of sources to design and make their own insect.

Make Your Own Paper
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The Chinese invented paper made from plants and cloth about 2,000 years ago. Learners follow a similar process to make paper from recycled paper.

Marshmallow Catapult
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In this activity, learners explore physics by building a catapult that launches marshmallows with household objects.

Manufacturing Technologies: Making a Picture Frame
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Learners examine the manufacturing process while they make picture frames from cereal boxes.

Three Little Pigs Construction Company
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In this activity about problem-solving, learners build a house for the Three Little Pigs using twenty straws and two index cards.

Solidly Platonic
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In this activity, learners follow simple directions to explore and create platonic solids.

Playtime Paint
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In this activity on page 9 of the PDF, learners make their own paint using chalk as a pigment and glue and water as binders. This activity introduces learners to special mixtures called suspensions.
How Many In a Minute
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In this activity, learners will keep track of how much they can do in one minute. Instructors can pick something everyone will do for a minute, such as jumping up and down or drawing stars.

Torsion Drum
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In this activity, learners build a musical drum using a cardboard tube, plastic wrap, and beads.

Hydraulic Car
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In this activity, learners build cars using syringes and water-powered hydraulics. Learners construct the car frame out of cardboard and set up a hydraulic system to raise and lower the car.