Chapter 1
Sarah is conducting an experiment to investigate the effect of different amounts of sunlight on plant growth. Identify the independent variable, dependent variable, and controlled variables in her experiment.
IV: amount of sunlight
DV: plant growth
CV: soil, water, location
name the steps of water cycle
evaporation, condensation, precipitation, run off
Name the three main types of rocks.
Sedimentary, igneous, metamorphic
What has hands but cannot clap?
clock
This magical school is where Harry Potter learns to be a wizard.
Hogwarts
Alex is studying the impact of exercise on heart rate. He has a group of participants who walk for 30 minutes and another group who sit quietly. Identify the variables and the controlled group in this experiment.
IV: Exercise
DV: heart rate
CV: duration of the walk, clothes, weather
explain these three changes in states of matter.
1. sublimation
2. condensation
3. deposition
1. solid to gas
2. gas to liquid
3. gas to solid
What happens at transform boundaries?
two tectonic plates just move parallel to each other, no volcanos erupts.
I’m tall when I’m young, and I’m short when I’m old. What am I?
candle
Elsa sings this famous song in Frozen.
let it go
Tom is investigating how the amount of sleep affects test scores. He asks his classmates to record their sleep hours and their math test scores for a week. Identify variables and the control group
IV: hours of sleep
DV: math score
CV: age, duration of the test, the math test, …
CG: a group of students that receive normal 8 hours of sleep
Explain how a physical change can affect the properties of a substance.
in physical change only shape and size of the substance changes not the chemical combination
which Earth's sphere consists of crust and the upper part of the mantle?
lithosphere
What comes once in a minute, twice in a moment, but never in a thousand years?
m
This blue video game character is famous for running fast and collecting rings.
Sonic the Hedgehog
A food scientist is investigating how different preservatives affect the shelf life of bread. They test three preservatives on identical loaves of bread. Identify variables and the control group
How can you tell a chemical change has occurred?
change of color
what is mantle made of?
magnesium, Iron, silicates
I have keys but no locks. I have space but no room. You can enter, but you can’t go outside. What am I?
Keyboard
This Netflix show follows a group of kids battling supernatural creatures in the town of Hawkins.
Stranger things
A psychologist is investigating the relationship between sleep deprivation and cognitive performance. Participants are kept awake for varying periods before completing a series of mental tasks. Identify variables and the control group
What is the significance of chemical reactions in geology?
metamorphic rocks are made when sedimentary or igneous rocks undergo chemical changes, heat and pressure
what is the Oort cloud in the soar system?
a bubble of dust that engulfs the solar system
What has a neck but no head?
bottle
This animated movie features a teenage girl named Mei Lee who transforms into a red panda when she gets too emotional.
turning red