Choose a grade.
All Grades
Grade One
Grade Two
Grade Three
Grade Four
Grade Five
Grade Six
Choose a lesson.
What are the parts of
a plant?
How do animals help
plants?
What is soil?
What is weather?
What is heat?
What are the poles of
a magnet?
What are living and
nonliving things?
What is a habitat?
What other natural
resources do people
use?
What causes day and
night?
What can we find out
about solids?
What are forces?
What are landforms?
What are different
kinds of resources?
What is a weather
map?
What causes Earth's
seasons?
How can matter be
measured?
How can heat be
measured?
What are vertebrates
and invertebrates?
What are systems?
How do volcanoes
form?
What are rocks?
How does a lever help
us to do work?
How do animals grow
and reproduce?
How do plants grow?
How does nature reuse
materials?
How do ecosystems
change naturally?
What processes change
landforms?
How do fossil fuels
form?
What are the features
of the Sun?
How can physical
properties be used to
identify matter?
How are motion and
speed related?
How are potential and
kinetic energy related?
How do plant and
animal cells differ?
How do plants respond
to their environment?
How do organisms get
energy?
How can weather be
predicted?
What are igneous
rocks?
What are the
properties of the
elements?
How are thermal
energy and heat
related?
How can you describe
motion?
What are mosses?
What are compound
machines?
How do air masses
affect weather?
How do ecosystems
change naturally?
What processes change
landforms?
What is conservation?
How do plants recycle
materials?
What makes up the
Earth's atmosphere?
What makes up the
atmosphere?
What are the planets
like?
How can matter be
measured and
compared?
How is heat produced
and used?
What is the life
cycle of a star?
How have people
explored space?
Send your questions to:
harcourt@scilinks.org
