Wikijunior:Big Book of Fun Science Experiments/Keep your mouse warm

The things needed to set this experiment are:

• Straw
• Thermometer
• Water
• Boxes
• Small medicine bottle with child proof lid

What to do

To make your mouse warm, you must pour warm water (37 °C (99 °F)) into the bottle. Then you have to put some straw into a box then put it into an ideal outdoor place for a mouse. Do this with friends and see who has the hottest den.