KOSHI High School

KOSHI High School　

SLIME~PVA become gel~

Ito KazukiOshima KaiseiKimura SakiGrade 2

What’s Slime?・ It’s made from PVA, borax and water.

PVA

Borax

We changed the reactants

We made slime in a pH indicator.

Experiment 1

We changed the reactants

(1)We changed the concentration of PVA.

(2)We changed the concentration of Borax.

★Result★

Borax 4%

1 2 3 4 5 6 7 8 9 100

10

20

30

40

50

60

70

80

90

100

water(g)Borax&PVA(g)

Amount of water in slime

Concentration of PVA(%)

1 2 3 4 5 6 7 8 9 1086.0%

88.0%

90.0%

92.0%

94.0%

96.0%

98.0%moisture percent(%)

moisture percent(%)

Borax 4%

Concentration of PVA(%)

Borax 2%

1 2 3 4 5 6 7 8 9 100

20

40

60

80

100

120

water(g)borax&PVA(g)

Concentration of PVA(%)

Amount of water in slime

Concentration of PVA(%)

1 2 3 4 5 6 7 8 9 1084.0%

86.0%

88.0%

90.0%

92.0%

94.0%

96.0%

98.0%

100.0%

moisture percent(%)

moisture percent(%)

Borax 1%

1 2 3 4 5 6 7 8 9 100

20

40

60

80

100

120

water(g)borax&PVA(g)

Amount of water in slime

Borax 1%

1 2 3 4 5 6 7 8 9 100.84

0.86

0.88

0.9

0.92

0.94

0.96

0.98

moisture percent(%)

moisture percent(%)

Experiment 2

We made slime in a pH indicator.(1) We made slime in phenolphthalein.

Phenol-phthalein

BTB slime Phenolphthalein slime

★BTB★acid basic

☆phenolphthalein☆

Subject from now on

1. We are going to consider how we can change the color of the slime.

2. We would like to investigate more about the character, the structure, and the conditions of making the slime.

Thank you for listening!!!

Big love!