Home > Grade 4 > Energy and Matter

• Old Cold: Living in Ice Age America
• James Watt and the Bubbling Kettle
• Snowballs in Summer
• The Powers of Pressure
• S'more Energy, Please!
• Burning Carbs
• Biofuels: The Ultimate in Recycling
• Candy Can Be a Gas!
• Ask Jimmy and the Bug (I)
• Ask Jimmy and the Bug (II)

• What caused the Statue of Liberty to change color over time?

Try these simulations too:

• How old can coral reefs be?
• Which star is the only one that doesn't appear to change its position in the sky?
• How fast does a stalactite grow?