A model of the sunlight that Earth receives is shown. Four locations on Earth are labeled W, X, Y, and Z.

In which pair of locations would a person most likely be experiencing night?
W and X
A family breeds their two cats. The mother cat has four kittens after she mates with the father cat.
Which of the following best describes the traits that the kittens inherited?
A) All the kittens inherited traits only from the father cat.
B) All the kittens inherited traits only from the mother cat.
C) Each kitten inherited some traits from the mother cat and some traits from the father cat.
D) Two kittens inherited traits only from the mother cat and two kittens inherited traits only from the father cat.
C) Each kitten inherited some traits from the mother cat and some traits from the father cat.
When a tuning fork is hit, it vibrates and makes a sound. Which of the following happens when a tuning fork is hit?
A) The tuning fork creates sound waves that carry kinetic energy
B) The tuning fork creates sound waves that carry electrical energy
C) The tuning fork creates sound waves that carry magnetic energy
A) The tuning fork creates sound waves that carry kinetic energy
Some communication systems represent information using Morse code. Morse code uses a different pattern of dots and dashes to represent each letter of the alphabet. Which of the following best describes the process of changing letters into Morse code?
A) Decoding
B) Encoding
C) Sending
D) Receiving
B) Encoding
Humans use energy and fuels in their daily lives.
Which of the following best describes the energy and fuels humans use?
A) Energy and fuels always produce electricity.
B) Energy and fuels always are made from rocks.
C) Energy and fuels always come from natural resources.
C) Energy and fuels always come from natural resources
Which of the following best describes how pea plants use energy?
A) Pea plants use energy from soil to break down food
B) Pea plants use energy from sunlight to break down food
C) Pea plants use energy from water to break down food
D) Pea plants use energy from sunlight to make their own food
D) Pea plants use energy from sunlight to make their own food
What type of phase change is evaporation? Which state of matter does the substance start as, and which state does it end as?
Liquid to gas
The telegraph was developed in the 1830s and uses short and long electrical signals (Morse code) to send and receive messages through wires. The telephone was developed in the 1870s and uses electrical signals to transmit voice and other audio through wires.
Is the telephone an invention or an innovation? Why?
An innovation, because it added to what telegraphs could already do.
How long does it take for the Earth to orbit around the sun?
One year
What is the original energy source in every food web?
The sun
What temperature does the atmosphere need to be to trigger evaporation?
The temperature must be hot to trigger evaporation.
What are potential limitations for engineering projects?
Cost, time, resources