Life Science
Lobsters and crabs have exoskeletons. What is the role of this structure?
It gives support and protection.
Which of the following is not a natural resource found in Florida?
A. water
B. oil
C. phosphate
D. diamonds
Why does a pencil appear to bend or break in water?
As light hits the water it refracts (bends).
What do we use to make observations in science?
Our 5 senses
Mrs. R took a mineral and moved it across a ceramic tile. What property is she most likely testing?
streak color
What is the correct sequence for the stages in the life cycle of a butterfly?
egg, larva, pupa, adult
What is the main difference between weathering and erosion?
Weathering shatters or breaks rock and erosion moves rocks and soil
Which of the following is an example of energy causing motion?
A. an apple sitting on a desk
B. a tennis racket leaning against a wall
C. an airplane taking off
D. a jacket hanging in a closet
What is the difference between an investigation and an experiment?
Experiments have independent, dependent and controlled variables.
How do plants make their own food?
Plants absorb energy from light to produce their own food.
Which of the following best describes what happens after a flower is fertilized through pollination?
A. The roots store food.
B. The plant grows new flowers.
C. The ovary grows into a fruit.
The seeds begin to germinate.
Erosion caused a U-shaped valley to form. What MOST likely caused it to form?
A. the movement of wind
B. the movement of animals
C. the movement of rocks
D. the movement of glaciers
Which of the following is NOT an example of a chemical change?
A. baking a cake
B. a nail rusting
C. burning a log
D. crushing an aluminum can
Aiden is conducting a scientific experiment. Why should he repeat the experiment several times?
A. to use all the materials at least once
B. to better understand the procedure
C. to make sure his results are accurate
D. to change variables during each trial
The stem of a plant is responsible for ______________.
supporting the plant and transporting water to the leaves
What type of specific life cycle change does a frog go through from egg to adult?
complete metamorphosis
What causes the apparent changes in the appearance of the moon?
The position of the moon changes in relation to the Earth and Sun, so different parts reflect light.
Violet accidentally dropped a mixture of sand and iron filings into a cup of water. How could she quickly separate these three substances?
A. heat the mixture over a flame
B. Use a magnet to attract the iron filings
C. Put the mixture on a hot plate to evaporate the water.
D. Pour the mixture through a filter, then use a magnet.
Della is investigating birds in her backyard. Which of these statements is a personal opinion rather than scientific observation?
A. The red birds have the most beautiful song.
B. The large blackbirds spread their wing sin the sun.
C. Different types of birds live in different parts of the same tree.
D. More birds visit her feeder in the morning than in the after noon.
Mrs. Shelden found a black and glassy rock while on vacation in Hawaii at Volcanoes National Park. What category of rock did she most likely find?
igneous
Plants have specific structures that help them reproduce. What structures do ferns have that help them reproduce?
spores
Whish of the following is a change due to weathering?
A. oceans waves washing sand off the beach
B. wind blowing sand off a sand dune
C. rivers moving soil and rocks through valleys
D. tree roots breaking rocks into smaller pieces
If a circuit is working correctly, what is electrical energy transformed into within the light bulb?
light energy and heat
Which of these is a testable question?
A. Is growing plants a fun hobby?
B. What potted plants should I grow?
C. What kinds of plants look best in my house?
D. Does fertilizer affect plant growth?
What is the job of the pistil in the flower?
The pistil is the female part of the plant and provides a path for the pollen to reach the egg.