Force and Motion Experiment. This fits into the physical science. You could use tin foil, sandpaper, and cardboard to create three different surfaces to see which one has more friction. This could be used in a reading lesson setting.
Liquid sodium agitated gently in a rotating tank can significantly amplify a magnetic field. The experiment is the first step toward demonstrating a self-sustaining field in a low-turbulence fluid, which may be analogous to Earth’s core.
An artist's impression of the magnetic fields of Venus, Earth and Mars interacting with charged particles streaming from the sun. Earth's magnetic field protects it from these atmosphere-stripping particles.
'Magnetic' Discovery May Reveal Why Earth Supports Life and Mars Doesn't- This invisible, protective shield likely existed shortly after the planet formed; a finding that could shed light on why Earth is habitable and Mars is not.
Kids are natural explorers they are constantly thirsty for knowledge and curiosity is their thing. It's really important to feed your child's need for answers and learning new things. As you know kids (Diy Kids Science)