Cornstarch - Mix about 3/4 cup of cornstarch with 1/4 cup of water in paper cup. Stir the mixture well until it thickens.
Gravel - Pour the mixture on a piece of cardboard from a height of 2-3 cm. Write “cone A” on the cardboard and set it aside.
Mixed - Fill another cup with gravel. Pour the gravel slowly on the second piece of cardboard from a height of about 10 cm. Label this model “cone B” and set it aside.
Slope(In Degrees)
Cornstarch - In a cup, mix the rest of the cornstarchwith the rest of the water. Fill the other paper cup with gravel. Pour a small amount of the cornstarch mixture on the third piece of cardboard, then pour some gravel on top. Repeat until all the cornstarch mixture and gravel have been used. Label this model “cone C” and set it aside until the mixtures in both cone A and cone C haves hardened (about 20 min).
Gravel - Draw the cone of volcanoes A, B and C.
Mixed - Use the protractor to measure the approximate slope of each cone. You can measure the slope from the base as shown below. Enter the data in Table 2.
Answers & Comments
Drawing Of Cone
Cornstarch - Mix about 3/4 cup of cornstarch with 1/4 cup of water in paper cup. Stir the mixture well until it thickens.
Gravel - Pour the mixture on a piece of cardboard from a height of 2-3 cm. Write “cone A” on the cardboard and set it aside.
Mixed - Fill another cup with gravel. Pour the gravel slowly on the second piece of cardboard from a height of about 10 cm. Label this model “cone B” and set it aside.
Slope(In Degrees)
Cornstarch - In a cup, mix the rest of the cornstarchwith the rest of the water. Fill the other paper cup with gravel. Pour a small amount of the cornstarch mixture on the third piece of cardboard, then pour some gravel on top. Repeat until all the cornstarch mixture and gravel have been used. Label this model “cone C” and set it aside until the mixtures in both cone A and cone C haves hardened (about 20 min).
Gravel - Draw the cone of volcanoes A, B and C.
Mixed - Use the protractor to measure the approximate slope of each cone. You can measure the slope from the base as shown below. Enter the data in Table 2.
#CarryOnLearning