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Encourage your kindergartener to investigate and chronicle the weather she observes during the coldest months of the year.

This activity turns your kid into the family weatherman. Plus, it teaches him to collect data and begin to understand graphing.

Liven up a lesson about graphing by helping your third grader compile a bar graph from his classmates' birthday data.

Make this paper chain calendar and give your child a visual reminder of the passing of time.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Plan ahead for summer, by constructing a holiday calendar with your child. A great way to teach kids about time!

First grade math includes lots of work with two-digit numbers. Here's an activity to help kids practice recognizing and sequencing numbers from 1-30.

Science fair project that determines how UV radiation emitted by the sun varies depending on the time of day, using a handheld UV detector

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

Make the abstract nature of time and money easier for your kid to understand with some fun ideas that focus on these concepts.

Start the new year with this fourth grade math "Calculation Challenge!"

The objective of this science project is to determine the relationship between carbon dioxide gas and the temperature of the atmosphere.

Teach your child what a sugar plum is with this easy recipe that gets your child to chop, mix, and roll his way to a delicious treat.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.