Highlights
Thomas Jefferson's Mysterious Bones
Lisa Idzikowski
People & Places
Thomas Jefferson, early 19th century, US history, mammoth bones, science discovery, Lewis and Clark, presidential history
HL
921
C1
English
9781683296638
Thomas Jefferson was obsessed with mammoth fossils. He sent William Clark to Big Bone Lick in the Ohio River Valley to collect fossils. Clark and his men found around 300 bones, including mammoth, elephant, goat, buffalo, and horse.
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 | 0.1% |
| Eiken Grade 2 | 866 | 1.27% |
| Eiken Grade 3 | 900 | 7% |
| Eiken Grade 4 | 600 | 11.33% |
| Eiken Grade 5 | 600 | 15.5% |
| Eiken Grade Pre1 | 2,868 | 0.31% |
| Eiken Grade Pre2 | 1,327 | 2.41% |
| Eiken Grade Pre2+ | 1,562 | 3.2% |
| NDL | 875 | 19.89% |
| NGSL 1 to 1,000 | 1,000 | 18.3% |
| NGSL 1,001 to 2,000 | 1,000 | 4.7% |
| NGSL 2,001 to 3,000 | 801 | 3.25% |
| NGSL Supplemental | 52 | 11.54% |
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% |