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1 Human Body System that Involves the Heart ☐
2 DNA Double Helix Discoverers ☐☐
2 DNA Double Helix Discoverers ☒☐
3 Types of Heat Transfer ☐☐☐
3 Types of Heat Transfer ☒☐☐
3 Types of Heat Transfer ☒☒☐
4 Arithmetic Operations ☐☐☐☐
4 Arithmetic Operations ☒☐☐☐
4 Arithmetic Operations ☒☒☐☐
4 Arithmetic Operations ☒☒☒☐
5 Dwarf Planets ☐☐☐☐☐
5 Dwarf Planets ☒☐☐☐☐
5 Dwarf Planets ☒☒☐☐☐
5 Dwarf Planets ☒☒☒☐☐
5 Dwarf Planets ☒☒☒☒☐
6 Simple Machines ☐☐☐☐☐☐
6 Simple Machines ☒☐☐☐☐☐
6 Simple Machines ☒☒☐☐☐☐
6 Simple Machines ☒☒☒☐☐☐
6 Simple Machines ☒☒☒☒☐☐
6 Simple Machines ☒☒☒☒☒☐
7 Diatomic Elements ☐☐☐☐☐☐☐
7 Diatomic Elements ☒☐☐☐☐☐☐
7 Diatomic Elements ☒☒☐☐☐☐☐
7 Diatomic Elements ☒☒☒☐☐☐☐
7 Diatomic Elements ☒☒☒☒☐☐☐
7 Diatomic Elements ☒☒☒☒☒☐☐
7 Diatomic Elements ☒☒☒☒☒☒☐
8 Human Muscles ☐☐☐☐☐☐☐☐
8 Human Muscles ☒☐☐☐☐☐☐☐
8 Human Muscles ☒☒☐☐☐☐☐☐
8 Human Muscles ☒☒☒☐☐☐☐☐
8 Human Muscles ☒☒☒☒☐☐☐☐
8 Human Muscles ☒☒☒☒☒☐☐☐
8 Human Muscles ☒☒☒☒☒☒☐☐
8 Human Muscles ☒☒☒☒☒☒☒☐
9 Layers of the Earth and Atmosphere ☐☐☐☐☐☐☐☐☐
9 Layers of the Earth and Atmosphere ☒☐☐☐☐☐☐☐☐
9 Layers of the Earth and Atmosphere ☒☒☐☐☐☐☐☐☐
9 Layers of the Earth and Atmosphere ☒☒☒☐☐☐☐☐☐
9 Layers of the Earth and Atmosphere ☒☒☒☒☐☐☐☐☐
9 Layers of the Earth and Atmosphere ☒☒☒☒☒☐☐☐☐
9 Layers of the Earth and Atmosphere ☒☒☒☒☒☒☐☐☐
9 Layers of the Earth and Atmosphere ☒☒☒☒☒☒☒☐☐
9 Layers of the Earth and Atmosphere ☒☒☒☒☒☒☒☒☐
10 Mohs Hardness Scale Minerals ☐☐☐☐☐☐☐☐☐☐
10 Mohs Hardness Scale Minerals ☒☐☐☐☐☐☐☐☐☐
10 Mohs Hardness Scale Minerals ☒☒☐☐☐☐☐☐☐☐
10 Mohs Hardness Scale Minerals ☒☒☒☐☐☐☐☐☐☐
10 Mohs Hardness Scale Minerals ☒☒☒☒☐☐☐☐☐☐
10 Mohs Hardness Scale Minerals ☒☒☒☒☒☐☐☐☐☐
10 Mohs Hardness Scale Minerals ☒☒☒☒☒☒☐☐☐☐
10 Mohs Hardness Scale Minerals ☒☒☒☒☒☒☒☐☐☐
10 Mohs Hardness Scale Minerals ☒☒☒☒☒☒☒☒☐☐
10 Mohs Hardness Scale Minerals ☒☒☒☒☒☒☒☒☒☐
9 Plant Cell Organelles ☐☐☐☐☐☐☐☐☐
9 Plant Cell Organelles ☒☐☐☐☐☐☐☐☐
9 Plant Cell Organelles ☒☒☐☐☐☐☐☐☐
9 Plant Cell Organelles ☒☒☒☐☐☐☐☐☐
9 Plant Cell Organelles ☒☒☒☒☐☐☐☐☐
9 Plant Cell Organelles ☒☒☒☒☒☐☐☐☐
9 Plant Cell Organelles ☒☒☒☒☒☒☐☐☐
9 Plant Cell Organelles ☒☒☒☒☒☒☒☐☐
9 Plant Cell Organelles ☒☒☒☒☒☒☒☒☐
8 Invertebrate Animals ☐☐☐☐☐☐☐☐
8 Invertebrate Animals ☒☐☐☐☐☐☐☐
8 Invertebrate Animals ☒☒☐☐☐☐☐☐
8 Invertebrate Animals ☒☒☒☐☐☐☐☐
8 Invertebrate Animals ☒☒☒☒☐☐☐☐
8 Invertebrate Animals ☒☒☒☒☒☐☐☐
8 Invertebrate Animals ☒☒☒☒☒☒☐☐
8 Invertebrate Animals ☒☒☒☒☒☒☒☐
7 Electromagnetic Waves ☐☐☐☐☐☐☐
7 Electromagnetic Waves ☒☐☐☐☐☐☐
7 Electromagnetic Waves ☒☒☐☐☐☐☐
7 Electromagnetic Waves ☒☒☒☐☐☐☐
7 Electromagnetic Waves ☒☒☒☒☐☐☐
7 Electromagnetic Waves ☒☒☒☒☒☐☐
7 Electromagnetic Waves ☒☒☒☒☒☒☐
6 Noble Gases ☐☐☐☐☐☐
6 Noble Gases ☒☐☐☐☐☐
6 Noble Gases ☒☒☐☐☐☐
6 Noble Gases ☒☒☒☐☐☐
6 Noble Gases ☒☒☒☒☐☐
6 Noble Gases ☒☒☒☒☒☐
5 Computer Scientists ☐☐☐☐☐
5 Computer Scientists ☒☐☐☐☐
5 Computer Scientists ☒☒☐☐☐
5 Computer Scientists ☒☒☒☐☐
5 Computer Scientists ☒☒☒☒☐
4 Galilean Moons of Jupiter ☐☐☐☐
4 Galilean Moons of Jupiter ☒☐☐☐
4 Galilean Moons of Jupiter ☒☒☐☐
4 Galilean Moons of Jupiter ☒☒☒☐
3 Mesozoic Periods ☐☐☐
3 Mesozoic Periods ☒☐☐
3 Mesozoic Periods ☒☒☐
2 Charged Sub-atomic Particles ☐☐
2 Charged Sub-atomic Particles ☒☐
1 'Father of Genetics' ☐