Backyard scientist. Series two /
Hoffman, Jane.
Backyard scientist. Series two / by Jane Hoffman ; illustrated by Lanny Ostroff. - Irvine, CA : Backyard Scientist/J. Hoffman, c1989. - 52 p. : ill ; 22 cm.
"Ages 9 years to 14 years"--Cover.
0961866322
92119236
Science--Experiments--Juvenile literature.
Experiments.
Science--Experiments.
Q164 / .H644 1989
507.8
Backyard scientist. Series two / by Jane Hoffman ; illustrated by Lanny Ostroff. - Irvine, CA : Backyard Scientist/J. Hoffman, c1989. - 52 p. : ill ; 22 cm.
"Ages 9 years to 14 years"--Cover.
0961866322
92119236
Science--Experiments--Juvenile literature.
Experiments.
Science--Experiments.
Q164 / .H644 1989
507.8