Teacher Created Materials
How Earth Tells Us Its Age
Monika Davies
Young Adult Nonfiction / Science & Nature / Earth Sciences / Environmental Science & Ecosystems / Experiments & Projects
STEM/STEAM Reading, Content-Area Literacy Science, Scientific Thinking
Smithsonian Readers
4,183
B1
English
9798765982082
Do you know how scientists figured out the age of our planet? Find out in this STEAM reader on EarthÕs age and story. Created in collaboration with the Smithsonian Institution, this STEAM reader boosts secondary studentsÕ literacy skills.
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 | 0.26% |
| Eiken Grade 2 | 866 | 4.62% |
| Eiken Grade 3 | 900 | 21.67% |
| Eiken Grade 4 | 600 | 27.17% |
| Eiken Grade 5 | 600 | 28% |
| Eiken Grade Pre1 | 2,868 | 1.15% |
| Eiken Grade Pre2 | 1,327 | 8.67% |
| Eiken Grade Pre2+ | 1,562 | 10.24% |
| NDL | 875 | 38.06% |
| NGSL 1 to 1,000 | 1,000 | 38.7% |
| NGSL 1,001 to 2,000 | 1,000 | 11.7% |
| NGSL 2,001 to 3,000 | 801 | 8.36% |
| NGSL Supplemental | 52 | 17.31% |
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% |