Highlights
Wrong-Way Planet
Ken Croswell, Ph.D.
Science & Nature
space, science, planet, star, astronomy
HL
895
B2
English
9781683297765
A planet's orbit is supposed to go in the same direction that its star spins, but scientists have discovered a planet that spins backward. And it's also the biggest planet ever found!
Word lists coverage
The word and grammar lists are compiled from commercially available resources and English study websites. They are not intended to be authority. Use at your own discretion.| List | Total | Coverage |
|---|---|---|
| Eiken Grade 1 | 3,105 | 0.06% |
| Eiken Grade 2 | 866 | 0.35% |
| Eiken Grade 3 | 900 | 8.56% |
| Eiken Grade 4 | 600 | 13.33% |
| Eiken Grade 5 | 600 | 14.5% |
| Eiken Grade Pre1 | 2,868 | 0.28% |
| Eiken Grade Pre2 | 1,327 | 2.41% |
| Eiken Grade Pre2+ | 1,562 | 2.82% |
| NDL | 875 | 19.77% |
| NGSL 1 to 1,000 | 1,000 | 18.3% |
| NGSL 1,001 to 2,000 | 1,000 | 3% |
| NGSL 2,001 to 3,000 | 801 | 2% |
| NGSL Supplemental | 52 | 5.77% |
Grammar lists coverage
The word and grammar lists are compiled from commercially available resources and English study websites. They are not intended to be authority. Use at your own discretion.| List | Total | Unique | Coverage | Unique |
|---|---|---|---|---|
| Eiken Grade Pre1 | 94 | 94 | 0% | 0% |
| Eiken Grade 2 | 123 | 122 | 0% | 0% |
| Eiken Grade Pre2 | 111 | 108 | 0% | 0% |
| Eiken Grade 3 | 48 | 47 | 0% | 0% |
| Eiken Grade 4 | 52 | 49 | 0% | 0% |
| Eiken Grade 5 | 176 | 139 | 0% | 0% |
| A1 | 352 | 316 | 0% | 0% |
| A2 | 949 | 893 | 0% | 0% |
| B1 | 1,126 | 1,106 | 0% | 0% |
| B2 | 775 | 760 | 0% | 0% |
| C1 | 402 | 395 | 0% | 0% |
| C2 | 312 | 308 | 0% | 0% |