5 th grade midyear science review, space science aldine isd 2009/2010
TRANSCRIPT
5th Grade MidYear Science Review, Space Science
Aldine ISD
2009/2010
5.5A Describe some cycles, structures and processes that are found in a simple system.5.5B Describe some interactions that occur in a simple system.
A system is made up of parts that work together to perform a common function.
case
switchspring
bulb
reflector
protectiveglass
reflector
batteriesbatteriesbatteries
5.5A Describe some cycles, structures and processes that are found in a simple system.5.5B Describe some interactions that occur in a simple system.
The solar system is an example of a system. Gravity holds the planets and moons in their orbits.
5.5A Describe some cycles, structures and processes that are found in a simple system.5.5B Describe some interactions that occur in a simple system.
The planets revolve, or travel around, the sun.
Moons revolve, or travel around, a planet.
Jupiter has many moons that revolve around it as it rotates on its axis.
5.5A Describe some cycles, structures and processes that are found in a simple system.5.5B Describe some interactions that occur in a simple system.
The earth rotates, or spins on its axis, once every 24 hours. This rotation is the reason we have day and night!
The moon rotates on its axis at the same exact speed that it revolves around the Earth.
Seasons are caused by the Earth’s tilt on its axis as it revolves around the sun.
5.5A Describe some cycles, structures and processes that are found in a simple system.5.5B Describe some interactions that occur in a simple system.
5.5A Describe some cycles, structures and processes that are found in a simple system.5.5B Describe some interactions that occur in a simple system.
Gravity from the moon causes tides on the Earth’s surface.
5.5A Describe some cycles, structures and processes that are found in a simple system.5.5B Describe some interactions that occur in a simple system.
Answer questions 21-24 on the review sheet.
5.6A Identify events and describe changes that occur on a regular basis such as in daily, weekly, lunar, and seasonal cycles.4.6A Identify patterns of change such as in weather, metamorphosis, and objects in the sky.
The moon has no light of its own. It simply reflects light from the sun. Since the moon is rotating on its axis AND revolving around the Earth, the part of the moon we see changes during each month.
5.6A Identify events and describe changes that occur on a regular basis such as in daily, weekly, lunar, and seasonal cycles.4.6A Identify patterns of change such as in weather, metamorphosis, and objects in the sky.
The lunar cycle is the time it takes for the moon to revolve once around the Earth. To people on Earth, the moon appears to change shape during the month. These changes are called the moon’s phases.
Complete questions 25-26 on the review sheet.
5.6A Identify events and describe changes that occur on a regular basis such as in daily, weekly, lunar, and seasonal cycles.4.6A Identify patterns of change such as in weather, metamorphosis, and objects in the sky.
3.11C Identify the planets in our solar system and their position in relation to the sun.
• The sun is a medium-sized star found in the center of our Solar System.
• Eight planets and their moons, one dwarf planet and other space bodies like comets and asteroids revolve, or orbit, the sun.
• The pull of gravity holds the bodies of the solar system together.
3.11C Identify the planets in our solar system and their position in relation to the sun.
Sun1
2
3
4
5
6
7
Pluto
8
Our Solar System
Planet Code1 Mercury2 Venus3 Earth4 Mars5 Jupiter6 Saturn7 Uranus8 Neptune
The path a planet follows as it revolves around the sun is called its orbit. It takes each planet a fixed length of time to complete one revolution.
3.11C Identify the planets in our solar system and their position in relation to the sun.
Answer questions 27-28 on your review sheet.
3.11D Describe the characteristics of the sun.
• The sun is the closest star to the Earth.
• The sun is made up of hot gases, mainly helium and hydrogen.
• Almost all of the energy found on the Earth comes from the sun.
3.11D Describe the characteristics of the sun.
• The sun is the only object in our solar system that can produce its own light.
• Even though it is only a medium-sized star, the sun is the largest object in the solar system.
3.11D Describe the characteristics of the sun.
• The dark, cooler spots found on the sun’s surface are called sunspots.
• Solar flares are violent bursts of energy from the sun’s surface.
Answer questions 29-30 on the review sheet.
3.11D Describe the characteristics of the sun.
Don’t let this happen to you!!!!
5.12C Identify the physical characteristics of the Earth and compare them to the physical characteristics of the moon.
The Earth The Moon
• About ¾ of the surface is covered with water.
• Surrounded by an atmosphere of gases
• No liquid water found on the moon’s surface.
• Little or no atmosphere on the surface
5.12C Identify the physical characteristics of the Earth and compare them to the physical characteristics of the moon.
The Earth The Moon• Diameter: 12,756 km• Shape: sphere• Surface: few craters,
rocky mountains, plains, valleys
• Active volcanoes• Rotation: 24 hours• Revolution: about 365
days
• Diameter: 3,475 km• Shape: sphere• Surface: lots of craters,
rocky mountains, plains, valleys
• Inactive volcanoes• Rotation: about 28 days• Revolution: about 28
days
5.12C Identify the physical characteristics of the Earth and compare them to the physical characteristics of the moon.
Answer questions 31-32 on the review sheet.
Answer Key:21. D The moon revolving once around the Earth
22. Gravity prevents planets and moons from flying off into space.
23. We know the Earth rotates because we have day and night.
Answer Key:24. A. 24 hours (1 day)
B. 365 days (1 year)
C. 27-28 days
D. 27-28 days
25. When Earth is between the moon and the sun, you see a full moon. You cannot see new moon in the night sky. Once a month, a first quarter moon occurs after a new moon and before a full moon. Two weeks later, a last quarter moon occurs after a full moon and before a new moon.
26. D 4
27. A Saturn
Answer Key:28. Planet 1: Mercury
Planet 2: VenusPlanet 3: EarthPlanet 4: MarsPlanet 5: JupiterPlanet 6: SaturnPlanet 7: UranusPlanet 8: NeptuneDwarf Planet: Pluto
29. C stars
30. C The sun revolves around the Earth and the moon.
31. C Extreme heat in sunlight and cold in shade
32. B clouds