Melissa tells her little brother that she has rice that can dance to music. Melissa takes an aluminum pie pan and places a shallow layer of rice in the pan. She holds the pan of rice over
a speaker on the radio and turns the radio volume up. The rice begins to dance and her little
brother is amazed! She shares this during science class the next day. Her teacher asks:
"Melissa, can you explain using the concept of sound waves what really happened to make
the rice dance?

How many atoms are there in 5.70 mol of mg

Marcel just purchased 1.69 grams of iron fillings in order to make living putty for his 6 year old niece. how many moles of iron are made in his sample?

Plz me ! 1 which of earths spheres contains most of its mass? a atmosphere b hydrosphere c geosphere* d biosphere 2 erosion and weathering are examples of which types of forces? a constructive forces b destructive forces* c gravitational forces d inertia-related forces 3 which of the following statements about earths atmosphere is true? a earths atmosphere contains 78% water vapor which is essentail to life b earths atmosphere contains 21% oxygen c earths atmosphere contains carbon dioxide which all life forms require d earths atmosphere allows radiation from the sun to pass through it and warm earths surface* 4 the strenght of the force of gravity between two objects is determined by which of the following factors? select all that apply a the messes of the objects* b the distance between the objects* c the volumes of the objects d the surface area of the objects 5 earth and moon are kept in there respective orbits due to the influence of a inertia b gravity c gravity and inertia* d neither gravity or inertia if you answer all questions right i will give