Scientific Method
Every experiment should be performed AT LEAST ___ times. (Answer is a number.)
3
Plants produce these 2 things during photosynthesis.
What are oxygen and glucose (sugar)?
Force that causes a change in motion or direction.
What is an unbalanced force?
If I mix two materials together and could separate them mechanically afterwards, what would I call that combination? (Ex. Separate with tweezers, a sifter, etc.)
What is a mixture?
The 3 types of rocks.
Igneous, sedimentary, metamorphic.
An experiment should have _____ variable(s), and it should not be included in the ______ group.
An experiment should have ONLY ONE variable, and it should not be included in the CONTROL group.
An organism that makes its own food.
What is a producer?
When I mix salt and water into a solution, the salt is the __________ and the water is the _________.
What is the solute, and solvent
What is closed?
After an experiment, a scientist should base their conclusion off of studying their _____.
Data. (Data table, graph, etc.)
If I want something to form a solution more quickly, I can add these two types of energy.
What are thermal (heat) and mechanical?
Plants reproduce primarily through 2 kinds of "offspring." They can produce ______, or _______.
What are spores or seeds?
Students are planning to measure how different types of water affect plant growth. They are going to test the different waters on a sunflower, a cabbage, and a strawberry plant. Why isn't this a true experiment?
The project has more than one variable. (Water type and plant type.)
Name the plant part that helps reproduction in plants that produce seeds.
The flower.
When I add heat energy to something, the molecules begin to move faster. They change from one state of matter to another. _________ to _______.
What is solid to liquid?
Name the life stages of a butterfly.
Egg, caterpillar, chrysalis, butterfly
In the "elephant toothpaste" demonstration at the beginning of the year, we had one variable. What was it?
A. The amount of heat produced by the reaction.
B. The concentration of chemical in the reaction.
C. The size of the bubbles produced by the reaction.
What is B?
BONUS: WHY could B be the only correct answer?
Put this food chain in order:
Snake, Sun, Mouse, Plant, Owl
Sun, Plant, Mouse, Snake, Owl
A force that opposes motion and acts between 2 objects that are touching.
What is friction?
Describe the differences between a physical and a chemical change.
Answers may vary.
Make a simple food chain with 4 objects/organisms.
Sun -> Plant -> Caterpillar -> Bird