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In this activity learners will create paint out of natural materials. Explore your natural world (or your fridge) and find berries, leaves, or flowers to find a great base for your paint.

In this activity, learners will explore reptile biology by taking temperature readings in various places and comparing them.

In this activity, learners will make their own prism and use a glass of water to separate sunlight into different colors.

In this activity, learners will be working with predictions with a time frame of one week, or longer. Start by planting seedlings.

In this indoor or outdoor water activity, learners pour water from small cups to large cups and containers. In doing so, they discover water takes the shape of its container.

Learn about friction and kinetic energy with this cool spinning toy.

In this activity, young learners, (2 years and up) explore bird behavior and adaptations by providing a homemade bird feeder and observing birds.

In this activity, young learners, (2 years and up) explore animal behavior and adaptations by providing a "track trap" and observing the signs animals leave behind.

In this activity, young learners (2 years and up) explore flower and plant biology and pollination by planting seed in a homemade seed starter.

In this version of tag, a large group of learners model how the body fights infection. Learners act as germs, as lymphocytes, and as the body's cells threatened by germs.

In this activity, learners will build a design and build a place for pollinators to drink from.

In this activity on page 27, learners perform an experiment to learn about how different types of marine debris degrade and how weather and sunlight affect the rate of degradation.

In this wintertime outdoor activity, learners role play wolves tracking their prey by following scented trails.

In this activity, learners construct speedy vehicles made out of paper plates and powered by twisted rubber bands.

In this math lesson, learners construct box-and-whisker plots to analyze and compare data sets. Learners investigate whether or not long-legged people run faster than short-legged people.

In this activity, learners use tonic water to detect ultraviolet (UV) light from the Sun and explore the concept of fluorescence.

In this activity (on page 2 of PDF), learners create a low-tech refrigerator that requires no electricity to keep food from spoiling.

Learners build particulate matter collectors--devices that collect samples of visible particulates present in polluted air.

In this activity, learners will explore engineering to construct an insect collecting tool (insect aspirator). The pooter uses suction to safely collect smaller insects that nets miss or may injure.

In this activity, young learners (2 years and up) explore dirt and what is in it by painting with mud.