| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| free science books for kids pdf | 0.52 | 0.8 | 5424 | 79 |
| free science books for kids | 1.73 | 0.8 | 2874 | 3 |
| free online science books for kids | 1.47 | 1 | 6846 | 49 |
| science books pdf free | 1.16 | 0.9 | 987 | 54 |
| books on science for kids | 1.15 | 0.2 | 8099 | 11 |
| free science books download pdf | 1.82 | 0.7 | 19 | 92 |
| free science ebooks for kids | 1.38 | 0.3 | 578 | 77 |
| amazon science books for kids | 1.36 | 0.1 | 5654 | 69 |
| science books for children | 0.42 | 0.8 | 9204 | 71 |
| book for kids on science | 0.2 | 0.1 | 1130 | 63 |
| children's science books pdf | 0.33 | 0.6 | 3866 | 84 |
