# SPICE GIRLS Kitty litter vs. sand. QUESTION ??? DDoes particle size effect the size of the crater?

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SPICE GIRLS Kitty litter vs. sand

QUESTION ??? DDoes particle size effect the size of the crater?

HYPOTHESIS  If we drop a marble into bigger particles (kitty litter) then it will make a bigger crater.

BACKGROUND INFORMATION  Potential and kinetic energy, force, gravity, speed and particle size.

INDEPENDENT VARIABLE  We will be changing the particle size. Sand and kitty litter.

CONSTANTS  The size of the marble and the distance of the drop.

DEPENDENT VARIABLE  The size of the crater.

PROCEDURES STEP 1: Add 500 mL sand to a pan. Drop a marble 80 cm into the sand.

STEP 2: Measure the width of the Crater in cm.

STEP 3: Follow the same procedure As step 1/ sand with kitty litter.

STEP 4: Measure the size of the crater In cm with a meter stick.

STEP 5:

STEP 6:

GRAPH

OUR WORK!!

DATA TABLE!!!! Kitty litter vs. sand

CONCLUSION!!!!  Our conclusion  Our hypothesis was if we drop a marble into big partials and small partial, then it will make a bigger crater in the biggest partial. We believe this because the bigger the partials the bigger the crater will be.  Our hypothesis was right because when we dropped the marble into kitty litter the crater was bigger than when we put the marble in the sand. We believe this because when we did our project the crater was bigger in the kitty litter.  Our date was that the average crater size in the kitty litter was 7cm, and the average crater of the sand is 6 cm. Are ranges was 3 cm on kitty litter, and the range of sand is 2 cm. Are median of kitty litter 7 cm, and the median of sand is 6 cm.  Our Explain is we think kitty litter makes a bigger crater because there is less mass to move when it collides with other particles. The reason that sand doesn’t have a bigger crater then kitty litter is because there is more mass to push when the marble collides with the sand.  Our new question is if we double the amount of sand and kitty litter will we get the same results?

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