Scientific Method
This is the first step of the scientific method, where you identify something you want to investigate.
What is asking a question?
This property makes the surface of water act like a stretched, elastic film.
What is surface tension?
If an organism has two different alleles for a trait, those two letters together make up its ________.
What is its genotype?
If T represents a dominant trait and t represents a recessive trait, this genotype is heterozygous.
What is Tt?
This is Teacher Nat's favorite fidget
What is keyboard clicker?
A scientist thinks fertilizer will help plants grow taller. This statement is an example of this.
What is a hypothesis?
Oil floats on top of water because oil has a lower ________ than water.
What is density?
Two parents have the genotypes AA and aa. The letter A represents this type of allele.
What is a dominant allele?
Two heterozygous parents (Bb × Bb) have offspring. The probability that an offspring will have the recessive phenotype is this.
What is 25%?
Before moving to Georgia, I spent most of my childhood in this state.
What is Tennessee?
A scientist tests a new type of paper towel by using the same amount of water, the same size paper towel, and the same pouring method each time. These are examples of this type of variable.
What are controlled variables?
A large ship made of steel can float because its overall value for this property is less than that of water.
What is density?
A student says, "Brown eyes are my genotype." The student is confusing genotype with this term.
What is phenotype?
A homozygous dominant parent (RR) is crossed with a homozygous recessive parent (rr). All of the offspring will have this genotype.
What is Rr (heterozygous)?
This is the bone that teacher broke while roller skating in 5th grade?
What is the ankle?
In an experiment testing whether music affects plant growth, the type of music is changed while everything else stays the same. The type of music is this variable.
What is the independent variable?
Each of these contains two hydrogen atoms and one oxygen atom.
What is a water molecule (H₂O)?
If two organisms have the same phenotype but different genotypes (BB and Bb), this explains why they can look the same.
What is a dominant allele masking a recessive allele?
A plant with genotype Aa is crossed with a plant with genotype aa. This is the probability that an offspring will have the recessive phenotype.
What is 50%?
This is Teacher Nat's Favorite hair color that she had?
What is blue hair?
In an experiment testing whether the amount of sunlight affects plant growth, the scientist changes the amount of sunlight and measures how tall the plants grow. The height of the plants is this type of variable.
What is the dependent variable?
A water strider can walk across the surface of a pond because water molecules stick together, creating strong surface tension. The force between the water molecules responsible for this is called this.
What is cohesion?
A flower has purple petals because it has at least one dominant allele (P). The flower could have these two possible genotypes.
What are PP and Pp?
Two heterozygous parents (Tt × Tt) have one offspring. The probability that the offspring is not homozygous recessive is this.
What is 75%?
This is Teacher Nat's newfound hobby
Learning ASL with Teacher Joy