2: chapter book
|juvenile nonfiction / science & nature / physics
|8.4 in h | 7.1 in w
|True Books have been upgraded and updated. Information is presented in a thorough yet engaging manner, featuring lively sidebars, a glossary, visual back matter, and an index.
RI.4.4. Determine the meaning of general academic and domain-specific words or phrases in a text relevant to a grade 4 topic or subject area.